JP5011210B2 - Communications system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system that suitably perform mail delivery over mutually different sites, even when mails to a plurality of mail addresses set for the same subscriber identification information need to be stored discriminatedly in the mutually different sites. <P>SOLUTION: A mail processing system of a main contract site XXX, having received mail from a communication terminal device 10S, transfers the received mail to a mail processing system of a sub contract site YYY on condition that the mail includes as a transmission source a mail address corresponding to a sub line (B line). The mail processing system of the sub contract site YYY receives the mail which is transferred from the mail processing system of the main contract side and includes as the transmission source the mail address corresponding to the sub line (B line), and temporarily stores the received mail so that it can be distributed to its transmission destination. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a communication system for providing a mail communication service that can be used from a communication terminal device.

Conventionally, as a communication terminal device that can be used by switching two mail addresses by one unit, there is known a communication terminal device that switches and uses two subscriber identification information set with different mail addresses and telephone numbers. (For example, refer to Patent Documents 1 and 2). For the first mail address, start the mail client application to send and receive mail. For the second mail address, start the WEB browser application to access the specified WEB site and use it as WEB mail. Communication terminal devices that send and receive mail are known.
In addition, as a mail communication service that can be used with conventional communication terminal devices, messages of multiple media types such as text, graphics, video, and audio are sent and received using a mobile communication system with a high data transmission rate. A possible multimedia messaging service (MMS) is known (for example, see Patent Document 3 and Non-Patent Document 1).
Recently, in addition to WEB communication protocols such as HTTP (Hypertext Transfer Protocol), mail communication services that can send and receive MMS mail using general mail communication protocols such as SMTP (Simple Mail Transfer Protocol) and IMAP (Internet Message Access Protocol). Are also being offered.

JP 2003-189013 A JP 2002-095038 A JP 2002-281550 A Multimedia Messaging Service Architecture Overview Version 1.2 (OMA-MMS-ARCH-v1_2-20030920-C)

However, in the communication terminal device that switches between the two conventional subscriber identification information, when the mail address used for mail transmission / reception is switched, the communication terminal apparatus is restarted for the network adjustment or the subscription for switching the subscriber identification information. The operation of switching an IC card such as a SIM (Subscriber Identity Module) in which the user identification information is stored is necessary, and the operability is poor.
Further, in the communication terminal device that switches between the above two conventional applications, it is necessary to switch between the two applications (mail client and WEB browser) when switching the mail address used for mail transmission / reception. It is bad and inconvenient because it is not possible to easily move and copy mail data between two applications.

  The present invention has been made in view of the above problems, and its purpose is set for the same subscriber identification information without switching the subscriber identification information or starting a plurality of applications in the communication terminal device. It is another object of the present invention to provide a communication system that can appropriately perform mail distribution and mail acquisition processing across sites even when mails for a plurality of mail addresses need to be stored separately in different sites.

A communication system according to the present invention is a communication system for providing a mail communication service that can be used from a communication terminal device, and is provided with a plurality of mails that can be processed at each of a plurality of different sites. A plurality of mail processing systems provided at each of the plurality of sites, each having a plurality of different mail addresses set for the same subscriber identification information corresponding to the subscriber of the communication terminal device; A mail processing system provided in a main contract site contracted for a main line set to be used mainly by a subscriber corresponding to the same subscriber identification information, and the subscriber Set up at the sub-contract site where at least one sub-line is set to be used separately from the main line. The mail processing system of the main contract site includes a mail receiving means for receiving a mail whose destination is specified from the communication terminal device of the subscriber, and the received mail is the A mail transfer means for transferring the mail to the mail processing system of the sub contract site when the mail is a mail address corresponding to the sub line, the mail processing system of the sub contract site, Mail receiving means for receiving mail that has been transferred from the mail processing system of the main contract site and whose mail address is the mail address corresponding to the sub-line, and the received mail can be delivered to the destination of the mail And a mail storage means for temporarily storing.
The mail processing system of the main contract site in this communication system includes the plurality of mail addresses from a communication terminal device that can use a main line and a sub-line each having a plurality of different mail addresses set for the same subscriber identification information. It is possible to receive a mail having a source of any mail address selected from the above. Here, the mail processing system of the main contract site transfers the received mail to the mail processing system of the sub contract site as necessary based on the mail address of the transmission source of the mail received from the communication terminal device. In other words, the mail processing system at the main contract site has the above-mentioned received mail contracted at another sub contract site, not the main line contracted at the main contract site where the mail processing system that received the mail is installed. If the email address is the email address corresponding to the secondary line, the email is transferred to the email processing system of the secondary contract site. The mail processing system at the sub contract site receives the mail transferred from the mail processing system at the main contract site, with the mail address corresponding to the sub line as the sender, and sends the received mail to the destination of the mail. It is stored in the temporary mail storage means so that it can be distributed to. Thus, the mail stored in the mail processing system of the sub contract site is delivered to the mail destination specified at a predetermined timing.

In the communication system, the mail processing system of the main contract site receives a mail transmission request for receiving a mail transmission request including connection information for transmitting the mail with the destination specified from the subscriber's communication terminal device. A subscriber authentication processing unit that acquires subscriber information of a communication terminal device that has transmitted the mail transmission request based on the connection information and executes an authentication process for a subscriber who uses the communication terminal device. And a line for receiving line identification information that can identify a line for mail transmission corresponding to a mail address set as a transmission source of the mail to be transmitted from the communication terminal device of the subscriber for which the subscriber authentication processing has been completed. Based on the identification information receiving means and the line identification information, a mail address corresponding to a mail address set as a transmission source of the mail to be transmitted. And determining the line determination means a line Le transmission may further comprise a.
Since the mail processing system of the main contract site in this communication system receives the mail transmission request including the connection information for transmitting the mail whose destination is specified, based on the connection information, The subscriber information of the communication terminal device that has transmitted the mail transmission request can be acquired, the authentication process can be executed for the subscriber using the communication terminal device, and the mail transmission request can be accepted safely. In addition, after the subscriber authentication process is completed, the main contract mail processing system sends line identification information that can identify the line corresponding to the mail address set as the transmission source of the mail to be transmitted from the communication terminal device. Since it is received, it is possible to determine the mail transmission source sub-line based on the line identification information, and to accurately determine the transmission source mail address set in the mail to be transmitted. Therefore, it is possible to safely and appropriately execute the processing of the mail to be transmitted for each of a plurality of mail addresses corresponding to the main line and the sub line that can be used in the communication terminal device.
In the communication system, when the mail processing system of the main contract site determines that the mail transmission line is the sub line, the mail processing system acquires subscriber information about the sub line and authenticates the sub line. Sub-line authentication processing means for executing processing may be further provided.
In this communication system, when the line of the mail transmission source is a sub-line that is insufficient for only the subscriber authentication process for executing the authentication process for the subscriber, the subscriber information about the sub-line is obtained and The authentication process is being executed. As a result, it is possible to safely accept a mail transmission request for requesting transmission of mail for the mail address corresponding to the sub line.
In the communication system, the mail for which the destination mail address is designated may be a mail for which the date and time to be delivered to the destination is designated.
In this communication system, the mail stored in the mail processing system of the sub contract site via the mail processing system of the main contract site is delivered to the mail transmission destination at a predetermined delivery date and time designated for the mail. .

Another communication system according to the present invention is a communication system for providing a mail communication service that can be used from a communication terminal device, and is provided so as to be able to process mail sent and received at a plurality of different sites. In the plurality of mail processing systems provided in each of the plurality of sites, a plurality of different mail addresses are set for the same subscriber identification information corresponding to the subscriber of the communication terminal device. A mail processing system provided in a main contract site contracted for a main line set to be used mainly by a subscriber corresponding to the same subscriber identification information among the plurality of lines, and the subscriber A sub-contract site that is contracted for at least one sub-line that is set to be used separately from the main line The mail processing system of the main contract site includes a mail processing system provided, and the mail processing system of the main contract site obtains mail from the subscriber's communication terminal device with a mail address corresponding to one of the plurality of lines as a destination The mail acquisition request receiving means for receiving the mail acquisition request for requesting the mail, and the mail acquisition request received from the communication terminal device of the subscriber requests the mail acquisition processing with the mail address corresponding to the sub-line as the transmission destination. If so, mail acquisition means for acquiring the mail from the mail processing system of the sub contract site, and mail with the mail address corresponding to the sub line acquired from the mail processing system of the sub contract site as the destination Is transmitted to the communication terminal device that has transmitted the mail acquisition request.
The mail processing system of the main contract site in this communication system includes the plurality of mail addresses from a communication terminal device that can use a main line and a sub-line each having a plurality of different mail addresses set for the same subscriber identification information. It is possible to receive a mail acquisition request for requesting a mail acquisition process with an arbitrary mail address selected from. Here, the mail processing system of the main contract site is based on the mail address specified in the mail acquisition request received from the communication terminal device, and the mail processing system of the sub contract site is used as needed from the communication terminal device. Get from. In other words, the mail processing system of the main contract site is such that the received mail acquisition request is not the main line contracted at the main contract site where the mail processing system receiving the mail acquisition request is provided, but another sub-site. When requesting mail acquisition processing with a mail address corresponding to the sub-line contracted at the contract site as a transmission destination, the mail is acquired from the mail processing system of the sub-contract site. Then, the mail processing system of the main contract site transmits a mail whose destination is the mail address corresponding to the sub line acquired from the mail processing system of the sub contract site to the communication terminal device that has transmitted the mail acquisition request. To do.

In the communication system, the mail acquisition request includes connection information for receiving a mail whose destination is a mail address corresponding to any of the plurality of lines, and the mail processing system of the main contract site includes the Subscriber authentication processing means for acquiring subscriber information of a communication terminal device that has transmitted the mail acquisition request based on connection information, and executing authentication processing for a subscriber using the communication terminal device; and the subscriber Line identification information receiving means for receiving line identification information capable of identifying the line of the mail transmission destination corresponding to the mail address set as the transmission destination of the mail to be received from the communication terminal device of the subscriber whose authentication processing has been completed And, based on the line identification information, the mail transmission destination corresponding to the mail address set as the transmission destination of the mail to be received. And determining the line determination means may further comprise a.
The mail processing system of the main contract site in this communication system receives from the communication terminal device a mail acquisition request including connection information for receiving a mail whose destination is a mail address corresponding to any of the plurality of lines. Therefore, based on the connection information, the subscriber information of the communication terminal device that has transmitted the mail acquisition request can be acquired, and the authentication process can be executed for the subscriber using the communication terminal device. Acquisition requests can be accepted safely. In addition, the mail processing system of the main contract, after the subscriber authentication process is completed, communicates the line identification information that can identify the line of the mail transmission destination corresponding to the mail address set as the transmission destination of the mail to be received. Since it is received from the apparatus, it is possible to determine the mail transmission destination sub-line based on the line identification information and accurately determine the transmission destination mail address set in the mail to be acquired. Accordingly, it is possible to safely and appropriately execute the processing of the mail to be acquired for each of a plurality of mail addresses corresponding to the main line and the sub line that can be used in the communication terminal device.
In the communication system, when the mail processing system of the main contract site determines that the line of the mail transmission destination is the sub line, the mail processing system of the main contract site acquires subscriber information about the sub line and Sub-line authentication processing means for executing authentication processing may be further provided.
In the mail processing system of the main contract site in this communication system, when the line of the mail address of the mail transmission destination is a sub-line that is not sufficient only by the subscriber authentication process for executing the authentication process for the subscriber, Subscriber information about the line is acquired and authentication processing is executed for the sub line. As a result, it is possible to safely accept a mail acquisition request for requesting mail acquisition for the mail address corresponding to the sub line.

Still another communication system according to the present invention is a communication system for providing a mail communication service that can be used from a communication terminal device, and is provided so that mail transmitted and received can be processed at each of a plurality of different sites. The plurality of mail processing systems provided at each of the plurality of sites are set with a plurality of different mail addresses for the same subscriber identification information corresponding to the subscriber of the communication terminal device. A mail processing system provided at a main contract site contracted for a main line set to be used mainly by a subscriber corresponding to the same subscriber identification information among the plurality of lines, and the subscription A sub-contract service contracted for at least one sub-line set to be used by a subscriber separately from the main line The mail processing system of the main contract site includes a mail processing system provided in a subscriber's communication terminal device, and sends a mail address corresponding to one of the plurality of lines as a transmission destination from the subscriber's communication terminal device. Server mail transfer request receiving means for receiving a server mail transfer request for requesting a transfer process, and a mail in which the server mail transfer request received from the subscriber's communication terminal device is sent to the mail address corresponding to the sub-line A mail acquisition means for acquiring the mail from the mail processing system of the sub contract site, and a mail address corresponding to the sub line acquired from the mail processing system of the sub contract site. Send the mail as the destination to the destination specified by the communication terminal that sent the server mail transfer request. Comprising a server mail transfer means for transmitting Le, a.
The mail processing system of the main contract site in this communication system includes a communication terminal device that can use a main line and a sub-line each having a plurality of different e-mail addresses for the same subscriber identification information. It is possible to receive a server mail transfer request for requesting mail transfer processing with a mail address corresponding to any of the mail addresses as a destination. Here, the mail processing system of the main contract site, when the server mail transfer request received from the communication terminal device requests the mail transfer process with the mail address corresponding to the sub line as the destination, the mail Is acquired from the mail processing system of the secondary contract site. Then, the mail processing system of the main contract site is configured such that the communication terminal device that has transmitted the server mail transfer request sends the mail addressed to the mail address corresponding to the sub line acquired from the mail processing system of the sub contract site. Send to the specified forwarding destination.

In the communication system, the server mail transfer request includes connection information for transferring mail having a mail address corresponding to any of the plurality of lines as a destination, and the server mail is based on the connection information. Subscriber authentication processing means for acquiring subscriber information of the communication terminal device that has transmitted the transfer request and executing authentication processing for the subscriber using the communication terminal device; and the subscriber for which the subscriber authentication processing has been completed Line identification information receiving means for receiving line identification information capable of identifying a line of a mail transmission source corresponding to a mail address set as a transmission source of the server mail transfer target mail, and the line identification information Based on the mail transmission line corresponding to the mail address set as the transmission source of the server mail transfer target mail. And line judging means for, may further comprise a.
The mail processing system of the main contract site in this communication system receives from the communication terminal device a server mail transfer request including connection information for transferring mail having a mail address corresponding to one of the plurality of lines as a destination. So, based on the connection information, it can acquire the subscriber information of the communication terminal device that has transmitted the server mail transfer request, can execute the authentication process for the subscriber using the communication terminal device, The server mail transfer request can be safely accepted. In addition, the mail processing system of the main contract communicates line identification information that can identify the mail transmission line corresponding to the mail address set as the transmission source of the server mail transfer target mail after the subscriber authentication process is completed. Since it is received from the terminal device, it is possible to determine the sub-line of the mail transmission based on the line identification information and accurately determine the mail address of the destination set in the mail to be transferred to the server mail. . Therefore, it is possible to safely and appropriately execute mail processing for server mail transfer for each of a plurality of mail addresses corresponding to the main line and the sub-line that can be used in the communication terminal device.
In the communication system, when the mail processing system of the main contract site determines that the mail transmission line is the sub line, the mail processing system acquires subscriber information about the sub line and authenticates the sub line. Sub-line authentication processing means for executing processing may be further provided.
In the mail processing system of the main contract site in this communication system, when the line of the mail address of the mail transmission is a sub-line that is not sufficient only by the subscriber authentication process for executing the authentication process for the subscriber, the sub-line The subscriber information about the sub-line is acquired and the authentication process is executed for the sub-line. As a result, it is possible to safely accept a server mail transfer request for requesting mail transfer processing for the mail address corresponding to the sub line.

  According to the present invention, in a communication terminal apparatus that can use a main line and a sub line in which a plurality of different mail addresses are set for the same subscriber identification information, the main line and the sub line can be used without activating a plurality of applications. It is possible to send a mail with each of a plurality of mail addresses corresponding to the sub-line as a transmission source, and to acquire or transfer a mail with each of the plurality of mail addresses as a transmission destination. Moreover, even if the emails for each email address are stored separately on different sites according to the sites contracted for the lines of the multiple email addresses, each email is properly distributed and each email is properly sent. The mail transfer process is performed between the mail processing system of the main contract site and the mail processing system of the sub contract site so that the mail can be acquired at the same time and each mail can be appropriately transferred. Accordingly, mails for a plurality of mail addresses set for the same subscriber identification information are stored separately in different sites without switching the subscriber identification information or starting a plurality of applications in the communication terminal device. Even in this case, there is an effect that mail distribution, mail acquisition, and mail transfer processing can be appropriately performed across sites.

Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1
FIG. 1 is an explanatory diagram showing an example of a schematic configuration of the entire communication system according to the embodiment of the present invention. In the communication system of the present embodiment, it is possible to use a mail communication service such as mail transmission / reception from user terminal devices (UE: User Equipment) 10S, 10R which are mobile communication terminals such as mobile phones as a plurality of communication terminal devices. it can. In order to provide this mail communication service, a mail processing system 231 is provided in the mobile communication network 20 as a communication network. The mail processing system 231 of this embodiment functions as a multimedia messaging service center (MMSC) that can provide a mail communication service that can send and receive multimedia messages (hereinafter referred to as “MMS messages”). The mail processing system 231 includes a multimedia messaging service-relay (MMS-R, hereinafter referred to as “MMS relay device”) 232 as a mail transfer processing device, and a multimedia messaging service-server (mail storage management device). MMS-S, hereinafter referred to as “MMS server device”) 233. The MMS relay device 232 receives, from each user terminal device 10S, 10R, an MMS message to be transmitted, a processing request for mail-related processing, etc., an incoming notification of an MMS message, a message body (mail body), and a transmitted MMS A delivery confirmation notification about the message is transmitted to the user terminal devices 10S and 10R. The MMS server device 233 includes a mail box (message box) 233a as mail storage means for storing the MMS message. The MMS server device 233 temporarily stores the transmitted / received MMS message in a distributable manner, or transmits the MMS transmitted to each subscriber. Save messages and received MMS messages. For transmission / reception of MMS messages between the mail processing system 231 and the user terminal devices 10S and 10R, general-purpose mail communication protocols such as SMTP and IMAP can be used in addition to WEB communication protocols such as HTTP.

  In the present embodiment, the terminal device on the message transmission side will be described as the user terminal device 10S and the terminal device on the message reception side will be described as the user terminal device 10R as necessary. Moreover, although this embodiment demonstrates the case where an MMS message is transmitted / received between two user terminal device 10S, 10R, this invention is applied irrespective of the number of user terminal devices and the kind of mail. be able to. For example, the present invention can be applied to a case where mail other than an MMS message is transmitted and received between three or more user terminal devices.

In addition, each of the user terminal devices 10S and 10R of the present embodiment is set with a plurality of different e-mail addresses for the same subscriber identification information corresponding to the user (communication service subscriber) of the user terminal device. Multiple lines can be used. In the present embodiment, as the plurality of lines, the A line as the main line set to be mainly used by the subscriber and the subscriber additionally use it separately from the A line (main line). Although the case where the B line as one sub line set to 1 can be used will be described, the present invention can be similarly applied to the case where two or more sub lines can be used.
Here, the “mail address” is an address on a communication network that can be used as a destination or source of mail such as an MMS message. As this “mail address”, for example, an “e-mail address” (for example, “aaaaa@ssssss.jp”) including “@” that can be sent and received via the Internet 30 in a format, or a mobile object Examples thereof include a “telephone number” (for example, “090-1234-5678”) that can be used for sending and receiving mails such as SMS (Short Message Service) messages via the communication network 20. The “plurality of different mail addresses” set for the same subscriber identification information is the “plurality of different mail addresses” set for the same type of mail address. For example, “2A@ssssss.jp” and “2B@ssssss.jp” can be cited as “a plurality of different mail addresses” when the “electronic mail address” is a mail address. In addition, “090-1111-aaaa” and “090-1111-bbbb” (where “aaaa” and “bbbb” are Are different numbers).

  The mobile communication network 20 includes a radio access network (RAN) 210 including a base station and a radio network controller, a core network 220 including an exchange, and an IP ( Internet Protocol) network 230 and a short message service center (hereinafter abbreviated as “SMSC”) 250 that relays and processes message transmission / reception of a short message service (hereinafter abbreviated as “SMS”). . Although not shown in FIG. 1, the mobile communication network 20 includes a RADIUS (Remote Authentication Dial In User Service) server as a communication service use management device that manages the use of communication services by each user, An R2M (RADIUS and Repository Manager) server is provided as a user information management device for managing user information necessary for a subscriber to use a communication service such as web and mail, information on user terminal devices, and the like. The RADIUS server performs an authentication process for identifying a communication service user, a process for determining whether to provide a communication service to an authenticated user, an accounting for recording actual communication service usage information, and the like. Do. Further, the R2M server provides information such as a telephone number of each user terminal device and subscriber identification information (IMSI: International Mobile Subscriber Identity) in response to a request from another node of the mobile communication network 20.

  The base station 211 of the radio access network 210 is provided for each cell subject to jurisdiction, converts data from a wired line in the mobile communication network 20 into a data format suitable for the radio interface, and is in the cell subject to jurisdiction. It transmits to the user terminal devices 10S and 10R at a radio frequency. Conversely, data from the user terminal devices 10S and 10R transmitted at the radio frequency is received, converted into a data format suitable for the wired interface, and transferred to the wired line portion in the mobile communication network 20.

  The core network 220 includes a switching network such as a circuit switching network or a packet switching network, a location registration database (HLR) 221, an authentication center (not shown), etc., and relays communication between user terminal devices. Control communication. Furthermore, the core network 220 performs communication control so as to relay communication between each user terminal device and the components in the mobile communication network 20. The core network 220 performs communication control so as to relay communication between each user terminal device and another communication network.

  The packet switching network of the core network 220 includes nodes such as an SGSN (Serving GPRS Support Node) 222 and a GGSN (Gateway GPRS Support Node) 223. The SGSN 222 includes a gateway function between a radio network control device (not shown) to which the base station 211 is connected and a packet switching network on the core network 220 side, location management, security management, and access control of each user terminal device 10S, 10R. And a function of performing The GGSN 223 has a gateway function between the packet switching network on the core network 220 side and the IP network 230.

  In addition to the mail processing system 231, the IP network 230 includes a proxy server 235, a gateway server 236, a PPG (Push Proxy Gateway) server 237 as a push-type delivery relay device, and subscriber information in which subscriber information is stored. It includes a CUR (Common User Repository) 238 as a database, an MDM (Message Delivery Management) server 239 as a message delivery management device for managing delivery information of various messages, and a WEB server (not shown).

  The proxy server 235 performs a process of relaying communication between the user terminal devices 10S and 10R and a server in the IP network 230 or a server on the Internet 30. This proxy server 235 also has a protocol conversion function for matching both communication protocols when the communication protocol in the core network 220 is different from the communication protocol in another communication network such as the IP network 230 or the Internet 30. The IP network 230 may be provided with a WEB server and a download server for downloading content.

  The gateway server 236 has a gateway function and a firewall function between the IP network 230 of the mobile communication network 20 and the Internet 30.

  Based on the push request received from the mail processing system 231, the PPG server 237 transmits a message such as the incoming call notification as a push-type message to the user terminal devices 10S and 10R via the SMSC 250. As the push-type message, for example, a WapPush message conforming to the WAP (Wireless Application Protocol) specification can be used. Note that the PPG server 237 converts a communication protocol, a data value, or a data format as necessary when transferring a push-type message such as an incoming call notification. It may be configured.

  The CUR 238 stores information on subscribers who use various communication services of the mobile communication network 20 using the user terminal device. The subscriber information includes, for example, information such as the name and address of each subscriber, subscriber identification information such as IMSI (International Mobile Subscriber Identity) uniquely assigned to each subscriber, Mobile subscriber ISDN number (MSISDN: Mobile Subscriber ISDN Number) and e-mail address, information on communication services registered by each subscriber, use of services used when using various communication services, etc. Stored are identification information (eg, account information), authentication information such as a password, and the like. Further, as in the present embodiment, when a subscriber has contracted a plurality of lines each having a plurality of sets of different phone numbers and mail addresses for the same subscriber identification information, For each line, telephone number, e-mail address, contract site information about the area where each line is contracted, contract line information that divides the main contract A line (main line) and the sub contract B line (sub line), etc. Is stored.

  Table 1 exemplifies a part of subscriber information related to a multi-line contract stored in the CUR 238 for a subscriber who can use two lines of A line (main line) and B line (sub line). is there. Table 2 exemplifies values of subscriber information related to the multi-line contract.

  Based on the information from the mail processing system 231, the MDM server 239 manages the delivery status of the MMS message transmitted / received by the user terminal devices 10S and 10R and the usage status of the mailbox, and is used for charging / receiving each message. File of communication service usage information (CDR: Call Detail Records). The above-described MMS relay device 232 notifies the MDM server 239 of the distribution status information of the MMS message transmitted / received by each user terminal device 10S, 10R, or notifies the distribution confirmation based on the distribution status information acquired from the MDM server 239. It can transmit to each user terminal device 10S, 10R. In addition, a file of charging communication service usage information generated by the MDM server 239 is collected by an information collecting device such as a CDR-C (CDR-Collector) and used for charging processing for each subscriber by the charging system. Is done.

  The SMSC 250 provides a short message service (SMS), and transmits a short message having a size limit (eg, 140 bytes) based on a telephone number as terminal identification information of each user terminal device. The data is received from the device 10S and transmitted to the user terminal device 10R on the receiving side. The SMSC 250 can also transmit a short message simultaneously to a plurality of user terminal devices in a broadcast format.

  A server for providing various contents is connected to the Internet 30 connected via the IP network 230 of the mobile communication network 20. As the server for providing contents, there are a WEB server 40 that mainly provides contents of a WEB page, a download server 50 that mainly provides contents such as image files, music files, and application program files. When content is downloaded from the various content providing servers on the Internet 30 to the user terminal devices 10S and 10R, a predetermined communication protocol is used in each layer of the network. For example, as a communication protocol of the application layer when downloading a WEB page from the WEB server 40, HTTP (HyperText Transfer Protocol), W-HTTP (Wireless HyperText Transfer Protocol), WTP (Wireless Transaction Protocol), WSP (Wireless Session Protocol). ) Etc. are used.

  The mail processing system 231 processes the MMS message as follows. For example, when the MMS relay device 232 of the mail processing system 231 receives the MMS message transmitted by SMTP from the user terminal device 10S on the transmission side, the MMS relay device 232 transfers the received MMS message to the MMS server device 233. The MMS server device 233 stores the MMS message received from the MMS relay device 232 in the mail box 233a. Further, when the MMS message is stored in the mailbox 233a of the MMS server device 233, the MMS relay device 232 sends the WMS Push to the receiving user terminal device 10R via the PPG server 237 and the SMSC 250 at a predetermined timing. An incoming notification of the MMS message is transmitted, or a delivery confirmation notification of the MMS message is transmitted to the user terminal device 10S on the transmission side by WAP Push. Further, upon receiving a message acquisition request from the receiving user terminal device 10R, the MMS relay device 232 acquires the entire MMS message corresponding to the message acquisition request from the MMS server device 233, and a predetermined format as necessary. The conversion is performed and transmitted to the user terminal device 10R on the receiving side by IMAP. Also, when the MMS relay apparatus 232 receives an MMS message addressed to the user terminal apparatus 10R from the Internet 30, it performs a predetermined format conversion as necessary after performing an incoming call notification, and receives the user terminal apparatus 10R on the receiving side. MMS message is transmitted to IMAP.

SMTP can be used as a communication protocol when transmitting or transferring an MMS message from each user terminal device 10S, 10R. Then, the transmission of the MMS message to be transmitted is added to the “MAIL FROM” command which can be used in SMTP so that the user terminal devices 10S and 10R can transmit the MMS message by using the mail addresses of the plurality of lines. Line identification information that can identify the original line is written. For example, when the transmission source telephone number (MSISDN) of the MMS message to be transmitted is “0A0CDEFGHJK / TYPE = PLMN”, a “MAIL FROM” command having the following format including the telephone number information as line identification information: Is transmitted from the user terminal device to the mail processing system 231.
[Example format of MAIL FROM command]
MAIL <SP> FROM: <SP><0A0CDEFGHJK / TYPE = PLMN><CR><LF>

In addition, in the “RCPT TO” command that can be used in SMTP when an MMS message is transmitted or transferred, circuit identification information that can identify the transmission destination line of the MMS message to be transmitted is written. For example, when the transmission destination telephone number (MSISDN) of the MMS message to be transmitted is “0B0LMNOPQRS / TYPE = PLMN”, the “RCPT TO” command having the following format including the telephone number information as line identification information: Is transmitted from the user terminal device to the mail processing system 231.
[RCPT TO command format example]
RCPT <SP> TO: <SP><0B0LMNOPQRS / TYPE = PLMN><CR><LF>

Further, WAP Push can be used as a communication protocol when transmitting the incoming notification of the MMS message, the message body, and the delivery confirmation notification to the user terminal devices 10S and 10R as the push-type message described above. Then, in each of the user terminal devices 10S and 10R, in order to receive and process an incoming notification or the like by properly using the above-mentioned multiple line mail addresses, in a plurality of types of header fields of push-type messages transmitted and received by WAP Push, Line identification information that can identify the transmission destination or transmission source line of the MMS message is written. When transmitting the incoming notification of the MMS message and the message body, line identification information capable of identifying the transmission destination line of the MMS message to be received is written. On the other hand, when transmitting a delivery confirmation notification of an MMS message, line identification information capable of identifying the transmission source line of the MMS message to be transmitted is written. For example, when the destination of the incoming notification target MMS message and the destination of the delivery notification target MMS message are the mail addresses of the main line (A line), a predetermined value is set in the following header field: Written.
[Example of header for main line (A line) mail address]
Content-Type: application / vnd.wap.mms-message
X-Wap-Application-Id: x-wap-application: mms.ua

On the other hand, when the destination of the incoming notification target MMS message and the source of the delivery notification target MMS message are the mail addresses of the sub-line (B line), a predetermined value is set in the following header field: Written.
[Example of header in case of mail address of secondary line (B line)]
Content-Type: application / vnd.zzz.mid2
X-Wap-Application-Id: x-yyy-zzz: mid2.ua

Further, after each user terminal device 10S, 10R receives an incoming call notification, the entire MMS message is acquired, and mail-related processing (server processing) such as message list acquisition and message deletion for the mailbox 233a of the mail processing system 231 is performed. As a communication protocol when making a request, IMAP can be used. Then, in order to be able to request mail-related processing by properly using the mail addresses of the above-mentioned multiple lines in each of the user terminal devices 10S and 10R, the “NOOP” command usable in IMAP corresponds to the mail address to be processed. The line identification information capable of identifying the line to be written is written. For example, when the telephone number (MSISDN) of the line corresponding to the mail address to be processed is “0A0CDEFGHJK”, the “NOOP” command in which the telephone number information is written in the mid tag as the line identification information is as follows: The user terminal device transmits the mail processing system 231.
[NOOP command format example]
tag <SP> NOOP <SP><cmd> C-ID </ cmd><ua-prof> URI </ ua-prof><user-agent> UA </ user-agent><mid> 0A0CDEFGHJK </ mid><CR><LF>

  In the format example of the NOOP command, “C-ID” is a command ID for identifying an operation, and “URI” (Uniform Resource Identifier) is an HTTP server to which a User Agent Profile (performance information of a user terminal device) is disclosed. “UA” (User Agent) is the name of the user terminal device.

  In addition to IMAP, LMTP (Local Mail Transfer Protocol) is used as necessary as a communication protocol for transmitting and receiving MMS messages and the like between a plurality of mail processing systems at different sites. For example, when an MMS message is transmitted from an MMS server device in a mail processing system to an MMS relay device at another site, IMAP is used, and an MMS message is transmitted from the MMS relay device in the mail processing system to an MMS server device at another site. Sometimes LMTP can be used.

  For more detailed communication sequence examples when the user terminal device uses a plurality of lines (main contract line: A line, sub-contract line: B line) for MMS message transmission / reception and mailbox management, It will be described later.

  FIG. 2 is a block diagram showing an example of a hardware configuration common to each of the MMS relay device 232 and the MMS server device 233 constituting the mail processing system 231. The MMS relay device 232 and the MMS server device 233 include a system bus 900, a CPU 901 as a processor, an internal storage device, an external storage device 904, an input device 905, an output device 906, and a communication device 907. The internal storage device includes a RAM 902, a ROM 903, and the like. The external storage device 904 is composed of, for example, a hard disk drive (HDD) or an optical disk drive. The input device 905 is composed of, for example, a mouse and a keyboard. The output device 906 is composed of, for example, a display or a printer. The communication device 907 communicates with the proxy server 235, the PPG server 237, the MMS relay device 232, etc. of the mobile communication network 20 according to a predetermined communication protocol, or a mail processing system at another site of the mobile communication network 20. And a device for communicating with various client terminals and other servers on the Internet 30 via the gateway server 236.

  The components such as the CPU 901 and the RAM 902 exchange data and program instructions with each other via the system bus 210. A program for operating the MMS relay device 232 and the MMS server device 233 in accordance with a predetermined procedure is stored in the ROM 903 and the external storage device 904, and is called and executed in the work area on the CPU 901 or RAM 902 as necessary. The

  Each of the MMS relay device 232 and the MMS server device 233 may be partially or entirely configured as a dedicated control device, or may be partially or entirely configured using a general-purpose computer system. In addition, each of the MMS relay device 232 and the MMS server device 233 may be configured by one independent computer, or may be configured by connecting a plurality of computers each having a plurality of functions via a network. In addition, the mail processing system 231 including the MMS relay device 232 and the MMS server device 233 may be configured by a single computer.

  FIG. 3 is a functional block diagram showing the relationship between the functions of the mail processing system (MMSC) 231 according to the present invention. The mail processing system 231 includes a message communication unit 920, a message processing unit 921, a message storage management unit 922, a notification data generation unit 923, and a notification data transmission unit 924. Among the components in this functional block diagram, the functions of the message communication unit 920, the message processing unit 921, the notification data generation unit 923, and the notification data transmission unit 924 are realized by the MMS relay device 232, for example. Further, the function of the message storage management unit 922 is realized by the MMS server device 233, for example.

The message communication unit 920 functions as means for performing the following communication using a predetermined communication protocol.
(1) Means for receiving an MMS message to be transmitted from the user terminal device 10S on the transmission side via the mobile communication network 20.
(2) A means for transmitting the MMS message to be distributed to the user terminal device 10R on the receiving side.
(3) Means for receiving line identification information for identifying the line corresponding to the mail address set as the transmission source of the MMS message from the user terminal devices 10S and 10R that can use a plurality of lines.
(4) Means for receiving a processing request for requesting mail-related processing (server operation processing) for a mailbox corresponding to the user terminal device from the user terminal devices 10S and 10R.
(5) A means for transmitting the result of the mail related processing corresponding to the processing request to the user terminal device that has requested the processing request.
(6) Means for receiving line identification information for identifying the line corresponding to the mail address to be processed in the mail related process from the user terminal devices 10S and 10R that can use a plurality of lines.

The message communication unit 920 also functions as a means for performing the following communication using a predetermined communication protocol.
(7) Means for receiving a mail with a destination specified from the user terminal device 10S on the transmission side.
(8) If the mail received from the user terminal device 10S on the transmitting side is a mail whose source is the mail address corresponding to the sub-line contracted at another contract site, the received mail is used as the other contract. A means of forwarding to the site's mail processing system.
(9) Means for receiving a mail transmitted from a mail processing system at another contract site and having a mail address corresponding to the sub-line contracted at the other contract site as a transmission source.
(10) Means for receiving a mail transmission request including connection information for transmitting the mail with the specified transmission destination from the user terminal device 10S on the transmission side.
(11) Means for receiving line identification information capable of identifying a line for mail transmission corresponding to a mail address set as a transmission source of the mail to be transmitted from the user terminal device 10S on the transmission side.
(12) Means for receiving a mail acquisition request for requesting mail acquisition processing with a mail address corresponding to one of a plurality of lines as a transmission destination from the user terminal device 10R on the receiving side.
(13) A mail acquisition request received from the user terminal device 10R on the receiving side is sent to a mail address to which a mail address corresponding to a sub line set to be additionally used separately from the main line at another contract site is sent Means for acquiring the mail from the mail processing system of the other contract site when the acquisition process is requested.
(14) The user terminal device on the receiving side that has transmitted the mail acquisition request to the mail addressed to the mail address corresponding to the sub-line of the other contract site acquired from the mail processing system of the other contract site Means to transmit to 10R.
(15) Means for receiving line identification information capable of identifying the line of the mail transmission destination corresponding to the mail address set as the transmission destination of the mail to be received from the user terminal device 10R on the receiving side.
(16) Means for receiving from the user terminal device 10 a server mail transfer request for requesting mail transfer processing with a mail address corresponding to one of the plurality of lines as a destination.
(17) The server mail transfer request received from the user terminal device 10 is a mail transfer whose destination is the mail address corresponding to the sub line set to be additionally used separately from the main line at another contract site. Means for acquiring the mail from the mail processing system of the other contract site when the processing is requested.
(18) E-mail with the e-mail address corresponding to the sub-line acquired from the e-mail processing system of the other contract site as e-mail to the transfer destination designated by the user terminal device that has transmitted the server e-mail transfer request Means to send.
(19) Means for receiving, from the user terminal device, line identification information capable of identifying a line for mail transmission corresponding to a mail address set as a transmission source of the mail for which server mail is to be transferred.

The message processing unit 921 functions as the following means.
(1) Means for relaying an MMS message between the message communication unit 920 and the message storage management unit 922.
(2) Means for sending status information on reception of MMS messages and processing requests and status information on distribution of MMS messages to the MDM server 239.
(3) Means for starting the transmission processing of the incoming notification of the MMS message and the delivery confirmation notification based on the status information of the transmission or delivery of the MMS message acquired from the MDM server 239.
(4) Means for determining a line set as a source of the MMS message or the processing request based on the line identification information received from the user terminal device.
(5) A means for executing authentication processing for the user (subscriber) of the user terminal device that has transmitted the MMS message or the processing request based on the subscriber information acquired from the CUR 238.
(6) A means for transmitting, to the message storage management unit 922, a server operation command for executing designated mail related processing in a mailbox for a predetermined mail address based on the processing request.

The message processing unit 921 also functions as the following means.
(7) On the basis of the connection information included in the mail transmission request received from the user terminal device 10S on the transmission side, the subscriber information of the user terminal device 10S is acquired, and the subscriber uses the user terminal device 10S. Means for executing authentication processing.
(8) Means for determining a mail transmission line corresponding to a mail address set as a transmission source of a mail to be transmitted based on the line identification information received from the user terminal device 10S on the transmission side.
(9) When it is determined that the mail transmission line is a sub-line set to be additionally used separately from the main line, subscriber information about the sub-line is acquired, and authentication processing is performed for the sub-line. Means to perform.
(10) Based on the connection information included in the mail acquisition request received from the receiving-side user terminal device 10R, the subscriber information of the receiving-side user terminal device 10R is acquired, and the receiving-side user terminal device 10R Means for performing authentication processing for subscribers using.
(11) Means for determining a line of a mail transmission destination corresponding to a mail address set as a transmission destination of a mail to be received based on the line identification information received from the user terminal device 10R on the receiving side.
(12) Based on the connection information included in the server mail transfer request received from the user terminal device, obtain subscriber information of the user terminal device that has transmitted the server mail transfer request, and use the user terminal device A means for executing authentication processing for a subscriber.
(13) Means for determining a mail transmission line corresponding to a mail address set as a transmission source of a server mail transfer target mail based on the line identification information received from the user terminal device that has transmitted the server mail transfer request. .

The message storage manager 922 functions as the following means.
(1) Means for receiving the MMS message received by the message communication unit 920 from the message processing unit 921 and storing the MMS message in the mailbox in association with the transmission source information or the transmission destination information of the MMS message.
(2) Means for reading out the requested MMS message from the mailbox based on the message acquisition request received from the message processing unit 921 and transmitting it to the message processing unit 921.
(3) Means for executing predetermined mail-related processing requested by the processing request based on the server operation command received from the message processing unit 921.
(4) Received emails that are forwarded from the email processing system of another contract site and whose source is the email address corresponding to the sub-line contracted at the other contract site can be delivered to the destination of the email Means for temporary storage.

The notification data generation unit 923 functions as the following means.
(1) Means for generating transmission data of the incoming notification of the MMS message based on the incoming notification start command received from the message processing unit 921 and the information of the related MMS message.
(2) Means for adding line identification information corresponding to the destination of the MMS message to be notified to the transmission data of the incoming notification.
(3) Means for generating transmission data of the delivery confirmation notification of the MMS message based on the delivery confirmation notification start command received from the message processing unit 921 and the related MMS message information.
(4) Means for adding line identification information corresponding to the transmission source of the MMS message to be notified to the transmission data of the delivery confirmation notification.

The notification data transmission unit 924 functions as means for transmitting the following notification using a predetermined communication protocol.
(1) Transmission of incoming call notification transmission data generated by adding line identification information by the notification data generation unit 923 via the PPG server 237 or the SMSC 250 of the mobile communication network 20 or the like. Means for transmitting to the corresponding user terminal device.
(2) The transmission confirmation notification transmission data generated by adding the line identification information by the notification data generation unit 923 is sent to the MMS message targeted for the distribution confirmation notification via the PPG server 237 or the SMSC 250 of the mobile communication network 20. Means for transmitting to the user terminal device corresponding to the transmission source of

  FIG. 4 is an explanatory diagram showing an example of an MMS message transmitted and received between the user terminal devices 10S and 10R via the mail processing system 231 that provides MMS (Multimedia Messaging Service). This MMS message is an Internet text format message compatible with MIME (Multipurpose Internet Mail Extension) whose specifications are defined in RFC (Request for Comments) 822, 2822, 2045, 2046, 2047, 2049, and the like. This MMS message is composed of a message body 930 and a header 931. The message body 930 of the MMS message can be configured to include data of information by various media such as voice, image, video, and audio in addition to text information. The header 931 of the MMS message includes various fields into which various information data related to the transmission message is input in a communication terminal such as a user terminal device on the transmission side.

The MMS, the mail processing system (MMSC) composed of the MMS relay device and the MMS server device, the MMS message, and the like comply with the specifications defined in the following (1) to (5), for example. Is.
(1) Multimedia Messaging Service Architecture Overview Version 1.2 (OMA-MMS-ARCH-v1_2-20030920-C)
(2) Multimedia Messaging Service Client Transactions Version 1.2 (OMA-MMS-CTR-v1_2-20030916-C)
(3) Multimedia Messaging Service Encapsulation Protocol Version 1.2 (OMA-MMS-ENC-v1_2-20030915-C)
(4) RFC2821 (Simple Mail Transfer Protocol)
(5) RFC3501 (INTERNET MESSAGE ACCESS PROTOCOL-VERSION 4rev1)

  FIG. 5 is an external view showing a configuration example of the user terminal device 10 (10S, 10R), and FIG. 6 is a schematic configuration diagram showing an example of a hardware configuration of the user terminal device 10. FIG. 7 is an explanatory diagram illustrating an example of a software structure in the user terminal device 10. In addition, in the following description, when not distinguishing two user terminal device 10S, 10R, it describes as the user terminal device 10.

  The user terminal device 10 is a clamshell (folding) type mobile phone, which is an example of a portable communication terminal device. A device 105 and a mobile communication network communication device 106 are provided. Components such as the CPU 101 and the RAM 102 exchange various data and program instructions with each other via the system bus 100.

  The CPU 101 reads and executes a predetermined program from the storage device, thereby performing various functions such as a voice call function and application software (hereinafter referred to as “application”) on the basic software OS of the native telephone platform. Can be realized. The functions of this application include a WEB browser, mailer, music playback, moving image display, data transmission / reception with an external device, address book management, scheduler, memo pad, and the like. Start up applications such as this WEB browser, mailer, music playback, video display, etc., send and receive MMS messages on that application, text and images (still images, videos) included in the received MMS messages, content, audio, etc. Audio content such as music may be output.

  Further, the CPU 101 can construct an application execution environment different from the native telephone platform by reading and executing a predetermined program from the storage device. Various applications such as an application preinstalled in the user terminal device and an application downloaded and registered by the user can be executed on the application execution environment. Examples of this application include an application written in a programming language such as JAVA (registered trademark) or C ++ developed by platform-independent object-oriented programming, an application written in C language, or an assembly language. Also, these application execution environments are constructed by middleware such as JAVA (registered trademark) virtual machine (VM) or BREW (registered trademark).

  The input device 104 includes a data input key (ten key, * key, # key) 11, a call start key 12, an end key 13, a scroll key 14, a multi-function key 15, a microphone 16, and the like. The numeric keypad 11, the call start key 12, the call end key 13, and the like of the input device 104 constitute an operation unit that can be operated by the user. By operating this operation unit, the user can send and receive MMS messages, expand and display image files attached to MMS messages, expand and play music files, Can be selected and executed. In addition, the user operates the operation unit to input data such as the URL of the content acquisition destination, start and end a call when receiving a call, and select, start and stop application programs. Can go. In addition, the user can download and register contents such as image files, music files, and application programs from the download server 50 by operating the operation unit.

The output device 105 includes a liquid crystal display (LCD) 17, which is a display means, a speaker 18, a vibration device (not shown), and the like. An output unit composed of an output device including the liquid crystal display (LCD) 17 and the speaker 18 informs the user that the MMS message and the incoming call notification have been received from the mobile communication network 20, and displays the MMS message. This is used when displaying text or images (still images, moving images) on a liquid crystal display (LCD) 17 or outputting voice or music attached to an MMS message from the speaker 18. When notifying the user of the reception of the MMS message or its incoming notification, an incoming notification image is displayed on the liquid crystal display (LCD) 17 of the output unit or a ringing tone is output from the speaker 18.
The output unit displays a Web page received via the mobile communication network 20 on a liquid crystal display (LCD) 17 or informs the user that information has been received from the mobile communication network 20. Also used for. The output unit is also used to display images and sound output related to the execution of the application program such as the game, or to display information received from the information distribution server. Used.
The speaker 18 may be configured by separately providing a receiver speaker (receiver) for listening to a voice during a call and an external output speaker for outputting a ring tone or music. You may comprise by one speaker so that the speaker for receivers and the speaker for external outputs may be combined.

  The vibration device that constitutes the output device 105 is the user terminal device 10 that receives a voice call or receives an MMS message or various distribution information when the manner mode (silent mode) is set. Can be controlled so as to notify the user of the incoming call.

  The mobile communication network communication device 106 includes a modem, a synthesizer, a frequency converter, a high-frequency amplifier, and the like, and communicates with other user terminal devices and the above-described server via the mobile communication network 20. Used. The mobile communication network communication device 106 exchanges MMS messages with other user terminal devices via the mobile communication network 20, or the Internet 30 or the like from the mobile communication network 20 via the gateway server 236. It is used as a communication means for connecting to an external communication network and exchanging MMS messages with communication terminals on the Internet 30. Further, the mobile communication network communication device 106 downloads an application program provided by the download server 50 via the mobile communication network 20 or receives distribution information including position information of the current position. Also used as receiving means.

  FIG. 8 is a functional block diagram showing the relationship between the functions of the user terminal device 10 according to the present invention. The user terminal device 10 includes a communication unit 110, a storage unit 111, an output unit 112, and a control unit 113.

The communication unit 110 includes the mobile communication network communication device 106 and the like, and performs the following communication with the mail processing system 231 via the mobile communication network 20 using a predetermined communication protocol. Function.
(1) A means for transmitting an MMS message.
(2) A means for transmitting line identification information for identifying a line corresponding to a mail address set as a transmission source of an MMS message to be transmitted among a plurality of lines usable in the user terminal device.
(3) Means for receiving an incoming notification of an MMS message whose destination is one of a plurality of lines that can be used by the user terminal device 10 via the PPG server 237, the SMSC 250, etc. of the mobile communication network 20.
(4) Means for receiving a message body of an MMS message corresponding to the incoming notification.
(5) Means for receiving a delivery confirmation notification of an MMS message whose source is any of a plurality of lines that can be used by the user terminal device 10 via the PPG server 237, the SMSC 250, etc. of the mobile communication network 20.
(6) A means for transmitting a processing request for requesting mail-related processing (server operation processing) for a mailbox corresponding to the user terminal device.
(7) Means for transmitting line identification information for identifying the line corresponding to the mail address to be processed in the mail related process.
(8) Means for receiving the result of the mail related processing requested by the processing request.

  The storage unit 111 includes a storage device such as the RAM 102 or the ROM 103, and stores received data such as an incoming notification, a delivery confirmation notification, a message body of an MMS message, and a mail-related processing result received by the communication unit 110. It has the function as a means to do. The storage unit 111 has a function as means for storing transmission data such as an MMS message transmitted by the communication unit 110.

  The output unit 112 includes the output device 105 and the like, and functions as a means for outputting received data such as an incoming notification received by the communication unit 110, a delivery confirmation notification, a message body of an MMS message, and a result of the mail related processing. Have In addition, the output unit 112 displays data such as an incoming notification of an MMS message and a message body on the display as text or image (still image, moving image) content, or outputs from a speaker or earphone as audio content such as voice or music. You can also do it.

  The control unit 113 includes the CPU 101 and the like, and transmits the MMS message by the communication unit 110, receives the incoming notification / delivery confirmation notification by the communication unit 110, receives the MMS message main body, and the MMS message to the storage unit 111. And a function as control means for controlling the storage of incoming notifications, the output of MMS messages and incoming notifications to the output unit 112, and the like. The control unit 113 reads the line identification information written in the incoming call notification or the delivery confirmation notification, and stores received data such as an incoming call notification or transmits an MMS message acquisition request based on the line identification information. It also functions as a means for starting processing.

  FIG. 9 is a sequence diagram illustrating an example of a processing procedure when an MMS message addressed to the receiving user terminal device 10R is transmitted from the transmitting user terminal device 10S in the communication system configured as described above. Note that the processing procedure of FIG. 9 is the same as the transmission user A line to the reception user side when both the transmission user and the reception user are contracted on the same site (XXX). The sequence when transmitting the MMS message addressed to the A line is illustrated. The numbers in parentheses in the figure indicate the order of steps in the processing procedure (the same applies to the following sequence diagrams).

  Table 3 shows the telephone numbers, e-mail addresses, and contract sites (contracts) of the two lines (line A and line B) that can be used in the transmission-side user terminal device 10S used by the transmission user (Ichiro) in the processing example of FIG. This is an example of information on the ground. Table 4 exemplifies information such as telephone numbers of the two lines (A line and B line) that can be used by the receiving-side user terminal device 10R used by the receiving user (child).

  In FIG. 9, first, the user (Ichiro) on the transmission side operates the user terminal device 10S to start an application for MMS messages and creates an MMS message. Then, with the A line of the main contract set as the line used for mail transmission / reception, specify the destination mail address ("2A@ssssss.jp" of the A line) and send the MMS message. The user terminal device 10S is operated. By this operation, the user terminal device 10S establishes a PDP (packet data protocol) context as a packet communication session with the GGSN 223 on the mobile communication network 20 side, and then the telephone number (090- As a user of 1111-aaaa), a TCP / IP connection request including connection information such as the telephone number (090-1111-aaaa) is transmitted to the MMS relay device 232 of the mail processing system 231 (step 1).

The PDP context establishment process conforms to the technical specifications of 3GPP (3rd Generation Partnership Project) and is performed, for example, according to the procedure shown in FIG.
In the example of FIG. 10, the user terminal device 10S transmits “ACTIVATE PDP Context Request” for requesting establishment of a PDP context to the GGSN 223 via the SGSN 222 (step 1001). Based on the “ACTIVATE PDP Context Request” received from the user terminal device 10S, the GGSN 223 transmits an “Access Request” requesting user authentication to the communication service usage management device (RADIUS server) 260 (step 1002). . The communication service use management device 260 executes user authentication for confirming whether or not the user of the user terminal device 10S is a user of the communication service (step 1003). This authentication process includes, for example, a telephone number (MSISDN), subscriber identification information (IMSI), terminal identification information (IMEI: International Mobile Equipment Identity), user authentication ID and password, SGSN IP address (SGSN-IP ) Etc. are used. If it is confirmed that the user is a user of the communication service, the communication service use management device 260 pays out an IP address for the user terminal device 10S of the user and transmits “Access Accept” to the GGSN 223. A response is made (step 1004). Next, the GGSN 223 transmits “Accounting Request (Start)” for requesting Accounting processing for recording communication service usage information for the user to the user information management apparatus (R2M server) 270 (Step 1005). By transmitting this “Accounting Request (Start)”, the user information management apparatus 270 is notified of the telephone number, IMSI, SGSN-IP, and the IP address issued for the user terminal apparatus 10S of the user. Is done. The user information management device 270 determines PLMN (Public Land Mobile Network) -id from the SGSN-IP received from the GGSN 223 (step 1006). This PLMN-id is composed of, for example, a country code (MCC: Mobile Country Code) and a network code (MNC: Mobile Network Code). After determining the PLMN-id, the user information management device 270 starts Accounting processing for the user terminal device 10S of the user, and transmits “Accounting Response” to the GGSN 223 (Step 1007). Next, the GGSN 223 transmits “ACTIVATE PDP Context Accept” notifying that the PDP context accepting process has been completed to the user terminal device 10S (step 1008). As described above, a PDP context that is a packet communication session is established between the user terminal device 10S and the GGSN 223.

  The MMS relay device 232 that receives the connection request from the user terminal device 10S uses the IP address of the user terminal device 10S on the transmission side as an IN key and uses the user terminal device 10S from the user information management device (R2M server) 270. Subscriber information (for example, telephone number, IMSI, SGSN-IP, PLMN-id), access the subscriber database (CUR) 238, and receive the telephone number of the main contract received from the user terminal device 10S on the transmission side Based on (090-1111-aaaa), subscriber information on the transmitting side is acquired (step 2), and authentication processing is executed for the subscriber on the transmitting side (step 3).

  Next, the user terminal device 10S on the transmission side includes “MAIL FROM” including information on the telephone number (090-1111-aaaa) of the A line as the transmission line identification information by SMTP, which is a general-purpose communication protocol for mail. The command is transmitted to the MMS relay device 232 (step 4). The MMS relay device 232 performs a check process on the “MAIL FROM” command received from the user terminal device 10S on the transmission side, and identifies the transmission source line of the MMS message (step 5). In this example, the transmission source line is specified as the A line (main line) of the main contract.

  Next, the MMS relay device 232 receives the “RCPT TO” command for the telephone number (080-2222-aaaa) of the transmission destination A line (main line) from the user terminal device 10S on the transmission side (step 6), Based on the destination telephone number (080-2222-aaaa), the subscriber database (CUR) 238 is accessed to obtain subscriber information on the receiving side (step 7). Thereafter, the MMS relay device 232 receives the data of the MMS message to be transmitted from the user terminal device 10S on the transmission side (step 8) and transfers it to the MMS server device 233 (step 9). The MMS server device 233 stores the MMS message received from the MMS relay device 232 in a mailbox as a mail addressed to the A line of the user terminal device 10R on the receiving side.

  Next, the MMS relay device 232, based on the destination telephone number (080-2222-aaaa) received from the transmission-side user terminal device 10S, registers the multiline attribute registered for the reception-side user terminal device 10R. A process for checking the information is executed (step 10). After that, the MMS relay device 232 uses the WAP Push, which is a general-purpose communication protocol for mail, to send an incoming notification in which the A-line identification information of the transmission destination is written in the header (Content-Type and Application-ID). It transmits toward the terminal device 10R (step 11). The incoming notification is temporarily received by the PPG server 237, which is a push-type distribution relay device, subjected to WSP encoding, which is a predetermined data conversion process (step 12), and receives the user terminal device 10R on the receiving side via the SMSC 250. (Step 13). Further, after transmitting the incoming call notification, the MMS relay apparatus 232 transmits M-Check-In (transmission), which is distribution processing information of the MMS message, to the MDM server 239 that is a message distribution management apparatus (step 14). ).

  FIG. 11 is a flowchart showing an example of a “MAIL FROM” command check process by the MMS relay device 232 executed in step 5 of FIG. First, the MMS relay device 232 confirms whether or not the “MAIL FROM” command has been received from the user terminal device 10S on the transmission side (step 101), and if the “MAIL FROM” command has been received (YES in step 101). Determines that there is a possibility that the user terminal device 10S on the transmission side is a mail transmission request from a multi-line compatible terminal device that can use a plurality of lines (A line, B line), and proceeds to the next check process. On the other hand, if the “MAIL FROM” command has not been received (NO in step 101), it is determined that the request is a mail transmission request from a non-multi-line compatible terminal device that can use only one line, and a subscriber related to the sub line. Information acquisition and authentication processing are skipped and processing proceeds to reception processing of the “RCPT TO” command.

  Next, if YES at step 101, the MMS relay apparatus 232 extracts the MSISDN portion (excluding / TYPE = PLMN) from the “MAIL FROM” command received from the user terminal apparatus 10S on the transmission side, and predetermined. It is determined whether or not it conforms to the format (0A0CDEFGHJK) (step 102). Here, if the MSISDN part of the “MAIL FROM” command matches the predetermined format (YES in step 102), it is determined that there is a possibility of a mail transmission request from the multi-line compatible terminal device, Proceed to the next check process. On the other hand, if the MSISDN portion of the “MAIL FROM” command does not match the predetermined format (NO in step 102), an error response is returned to the user terminal device 10S on the transmission side as an error in the value of the “MAIL FROM” command. Thereafter, a predetermined response code and response message are returned to the user terminal device 10S, all the information acquired so far is discarded, and the process is stopped (step 103).

  Next, if YES in step 102, the MMS relay apparatus 232 determines whether or not the value of the “MAIL FROM” command received from the user terminal apparatus 10S on the transmission side is “00000000000000” (step 104). . This is a determination to make a terminal device that writes a special value “00000000” having the above-mentioned predetermined format in a “MAIL FROM” command as a terminal device that does not support multi-line. If the value of the “MAIL FROM” command is not “00000000000000” (NO in step 104), it is determined that there is a possibility of a mail transmission request from the multi-line compatible terminal device, and the process proceeds to the next check process. . On the other hand, when the value of the “MAIL FROM” command is “00000000000000” (YES in step 104), it is determined that the request is a mail transmission request from a terminal device that does not support multi-line, and a normal response (250 OK) is sent. To the user terminal device 10S and skips the acquisition and authentication processing of the subscriber information related to the sub line and proceeds to the reception processing of the “RCPT TO” command.

  Next, if NO in step 104 above, the MMS relay device 232 determines that the value of the “MAIL FROM” command received from the user terminal device 10S on the transmission side is the telephone number of the A line of the main contract of the user terminal device 10S. (Step 105). Here, when the value of the “MAIL FROM” command is not the same as the telephone number of the A line of the user terminal device 10S on the transmission side (NO in step 105), it is possible to be a mail transmission request from the multiline compatible terminal device. The process proceeds to the next check process. On the other hand, if the value of the “MAIL FROM” command is the same as the telephone number of the A line of the user terminal device 10S on the transmission side (YES in step 105), it is a mail transmission request from a terminal device that does not support multiline. Determination is made and a normal response (250 OK) is transmitted to the user terminal device 10S on the transmission side, and at the same time, the acquisition of subscriber information relating to the sub-line and the authentication process are skipped and the process proceeds to the reception process of the “RCPT TO” command.

  Next, in the case of NO in step 105, the MMS relay device 232 determines that the value of the “MAIL FROM” command received from the user terminal device 10S on the transmission side is the value of the user terminal device 10S acquired from the subscriber information database CUR238. It is determined whether or not the value is the same as the value of the multiline attribute (step 106). Here, if the value of the “MAIL FROM” command is not the same as the value of the multiline attribute (NO in step 106), the B line of the spoofed terminal device or the currently invalidated B that has been registered in the past. After determining that it is a mail transmission request from the line and returning an error response to the user terminal device 10S on the transmission side, a predetermined response code and response message are returned to the user terminal device 10S, and all the information acquired so far is discarded. Then, the process is stopped (step 107). On the other hand, when the value of the “MAIL FROM” command is the same as the value of the multiline attribute (YES in step 106), it is determined that the request is a mail transmission request from the B line of the sub contract of the user terminal device 10S on the transmission side. (Step 108), the process proceeds to acquisition and authentication processing of subscriber information related to the B line.

  In the “MAIL FROM” command check process of FIG. 11, the MMS relay device 232 further sets the line to the “MAIL FROM” command and rewrites the mail address of the “MAIL FROM” command as shown below. You may make it perform. For example, if NO in step 101 of FIG. 11, the value of the “MAIL FROM” command is set to the telephone number of the A line (main line), and the mail address of the MMS message sender is the correct sender (A line). Process to rewrite the email address. If YES in step 104 of FIG. 11, the value of the “MAIL FROM” command is set to the telephone number of the A line (main line), and the mail address of the sender of the MMS message is set to the correct sender (A line). Rewrite to your email address. If YES in step 105 in FIG. 11 and YES in step 106, the telephone number of the correct line is set in the “MAIL FROM” command, so the mail address rewriting process, that is, the sender of the MMS message Only the process of rewriting the mail address with the mail address of the correct sender (A line or B line) is performed. In the case of an error response (step 103 and step 107), the process ends (completes) with the error response, so that the setting of the value of the “MAIL FROM” command and the rewriting process of the mail address are not performed.

  FIG. 12 is a flowchart showing an example of multiline attribute check processing for the user terminal device 10R on the receiving side by the MMS relay device 232 executed in step 10 of FIG. First, the MMS relay apparatus 232 receives the receiver acquired from the subscriber information database CUR238 for the receiving user terminal apparatus 10R before transmitting the incoming call notification for the MMS message received and stored from the transmitting user terminal apparatus 10S. It is determined whether or not there is a “multiline attribute” in which information related to a multiline compatible terminal device that can use a plurality of lines (A line, B line) exists in the subscriber information on the side (step 201) . Here, when the multiline attribute does not exist (“None” in step 201), the header is used as the line identification information of the A line in each of the predetermined header fields Content-Type and Application-ID of the header of the incoming notification. The existing information used in the field is set (step 202). On the other hand, if the multiline attribute exists (“Yes” in step 201), the value of the multiline attribute is determined (step 203).

  Next, the MMS relay device 232 determines that the multiline attribute value has no value in the multiline attribute value determination, the multiline attribute value is a value corresponding to non-contracted, or the multiline attribute value is multivalued. When the value corresponding to the A line of the line contract is written, it is used in the header field as the line identification information of the A line in each of the predetermined header fields Content-Type and Application-ID of the header of the incoming notification. The existing information that has been set is set (step 204). On the other hand, if the value of the multiline attribute is a value corresponding to the B line of the multiline contract, it is determined that the line of the user terminal device 10R on the receiving side is the B line (step 205), and the incoming notification header The line identification information of the B line is set in each of the predetermined header fields Content-Type and Application-ID (step 206).

  FIG. 13 is a sequence diagram illustrating an example of another processing procedure when an MMS message addressed to the receiving user terminal device 10R is transmitted from the transmitting user terminal device 10S in the communication system configured as described above. In the example of FIG. 13, the line used in the user terminal device 10S on the transmission side is a B line (sub-line) different from the example in FIG. 9, and the line used in the user terminal device 10R on the reception side is FIG. This is the same A line (main line) as in the example. Steps 1 to 3 and 8 to 16 in FIG. 13 are the same as steps 1 to 3 and 6 to 14 in FIG.

  In FIG. 13, after executing the authentication process (step 3) for the subscriber on the transmission side in the same manner as in FIG. 9, the user terminal device 10S on the transmission side uses the SMTP, which is a general-purpose communication protocol for mail, "MAIL FROM" command including the information of the telephone number (090-1111-bbbb) of the B line as the line identification information of is sent to the MMS relay device 232 (step 4). The MMS relay device 232 performs a check process on the “MAIL FROM” command received from the user terminal device 10S on the transmission side, and identifies the transmission source line of the MMS message (step 5). In this example, it is specified that the transmission source line is the B line (sub line) of the sub contract.

  Next, the MMS relay device 232 accesses the subscriber database (CUR) 238, and based on the telephone number (090-1111-bbbb) of the B line (sub line) received from the user terminal device 10S on the transmission side, Subscriber information regarding the B line (sub line) on the transmission side is acquired (step 6), and subscriber authentication processing is executed for the B line (sub line) (step 7).

  Table 5 shows an example of the subscriber attribute determined in the B line subscriber authentication process. In this example, “user status”, “user transmission status”, “restriction of mail SMTP access”, and “subscription status to WAP (packet) communication service” are determined for the subscriber. Here, “user status” is a value corresponding to “in service” or “reception restriction”, “user transmission status” is a value corresponding to “no restriction”, and “mail SMTP access” is “no restriction”. ”And“ WAP communication service ”is a value corresponding to“ subscription ”, the subsequent processing is continued as in the example of FIG. 13. On the other hand, if at least one value of each subscriber attribute does not satisfy the determination condition values in Table 5, after sending an error response to the user terminal device 10S on the transmission side, a response code and response corresponding to the determination condition not satisfying the above A message is returned to the user terminal device 10S, all the information acquired so far is discarded, and the process is stopped.

  FIG. 14 is a sequence diagram showing an example of still another processing procedure when an MMS message addressed to the receiving user terminal device 10R is transmitted from the transmitting user terminal device 10S in the communication system configured as described above. In the example of FIG. 14, the line used in the user terminal device 10S on the transmission side is the same A line (main line) as in the example of FIG. 9, and the line used in the user terminal device 10R on the reception side is as shown in FIG. B line (sub line) different from the example. Steps 1 to 5 in FIG. 14 are the same as steps 1 to 5 in FIG.

  In FIG. 14, the MMS relay device is identified after identifying the transmission source line of the MMS message by executing a check process for the “MAIL FROM:” command received from the user terminal device 10S on the transmission side, as in FIG. 232 receives the “RCPT TO” command from the transmission-side user terminal device 10S for the telephone number (080-2222-bbbb) of the transmission destination B line (sub-line) (step 6), and the transmission destination telephone number Based on (080-2222-bbbb), the subscriber database (CUR) 238 is accessed to obtain subscriber information on the receiving side (step 7). Thereafter, the MMS relay device 232 receives the data of the MMS message to be transmitted from the user terminal device 10S on the transmission side (step 8) and transfers it to the MMS server device 233 (step 9). The MMS server device 233 stores the MMS message received from the MMS relay device 232 in a mailbox as a mail addressed to the B line of the receiving-side user terminal device 10R.

  Next, the MMS relay device 232, based on the destination telephone number (080-2222-bbbb) received from the user terminal device 10S on the transmission side, registers the multiline attribute registered for the user terminal device 10R on the reception side. A process for checking the information is executed (step 10). After that, the MMS relay device 232 uses the WAP Push, which is a general-purpose communication protocol for mail, to send an incoming notification in which the destination B line identification information is written in the header (Content-Type and Application-ID). It transmits toward the terminal device 10R (step 11). The incoming notification is temporarily received by the PPG server 237, which is a push-type distribution relay device, subjected to WSP encoding, which is a predetermined data conversion process (step 12), and receives the user terminal device 10R on the receiving side via the SMSC 250. (Step 13). Further, after transmitting the incoming call notification, the MMS relay apparatus 232 transmits M-Check-In (transmission), which is distribution processing information of the MMS message, to the MDM server 239 that is a message distribution management apparatus (step 14). ).

  FIG. 15 is a sequence diagram illustrating an example of still another processing procedure when an MMS message addressed to the receiving user terminal device 10R is transmitted from the transmitting user terminal device 10S in the communication system configured as described above. In the example of FIG. 15, both the line used in the user terminal device 10S on the transmission side and the line used in the user terminal device 10R on the reception side are B lines (sub lines) different from the example in FIG. Note that steps 1 to 3 in FIG. 15 are the same as steps 1 to 3 in FIG.

  In FIG. 15, after executing the authentication process (step 3) for the subscriber on the transmission side in the same manner as in FIG. 9, the user terminal device 10S on the transmission side uses the SMTP, which is a general-purpose communication protocol for mail, "MAIL FROM" command including the information of the telephone number (090-1111-bbbb) of the B line as the line identification information of is sent to the MMS relay device 232 (step 4). The MMS relay device 232 performs a check process on the “MAIL FROM:” command received from the user terminal device 10S on the transmission side, and identifies the line that is the source of the MMS message (step 5). In this example, it is specified that the transmission source line is the B line (sub line) of the sub contract.

  Next, the MMS relay device 232 accesses the subscriber database (CUR) 238, and based on the telephone number (090-1111-bbbb) of the B line (sub line) received from the user terminal device 10S on the transmission side, Similar to the case of FIG. 13 described above, the subscriber information regarding the B line (sub line) on the transmission side is acquired (step 6), and the subscriber authentication process is executed for the B line (sub line) (step 7). .

  Next, the MMS relay apparatus 232 receives an “RCPT TO” command from the transmission-side user terminal apparatus 10S for the telephone number (080-2222-bbbb) of the destination B line (sub line) (step 8), Based on the destination telephone number (080-2222-bbbb), the subscriber database (CUR) 238 is accessed to acquire subscriber information on the receiving side (step 9). Thereafter, the MMS relay device 232 receives the data of the MMS message to be transmitted from the user terminal device 10S on the transmission side (step 10) and transfers it to the MMS server device 233 (step 11). The MMS server device 233 stores the MMS message received from the MMS relay device 232 in a mailbox as a mail addressed to the B line of the receiving-side user terminal device 10R.

  Next, the MMS relay device 232, based on the destination telephone number (080-2222-bbbb) received from the user terminal device 10S on the transmission side, registers the multiline attribute registered for the user terminal device 10R on the reception side. A process for checking the information is executed (step 12). After that, the MMS relay device 232 uses the WAP Push, which is a general-purpose communication protocol for mail, to send an incoming notification in which the destination B line identification information is written in the header (Content-Type and Application-ID). It transmits toward the terminal device 10R (step 13). The incoming notification is temporarily received by the PPG server 237, which is a push-type distribution relay device, subjected to WSP encoding, which is a predetermined data conversion process (step 14), and via the SMSC 250, the receiving user terminal device 10R. (Step 15). Further, after transmitting the incoming call notification, the MMS relay device 232 transmits M-Check-In (transmission), which is distribution processing information of the MMS message, to the MDM server 239 that is a message distribution management device (step 16). ).

  FIG. 16 is a sequence diagram illustrating an example of a processing procedure when the user terminal device 10R on the receiving side receives an incoming call notification and acquires an MMS message corresponding to the incoming call notification in the communication system configured as described above. The processing procedure of FIG. 16 is based on the MMS that reaches the A line on the receiving user side when both the transmission user and the receiving user have a contract with the same site (XXX). The sequence when acquiring a message is illustrated.

  In FIG. 16, first, the receiving user (child) activates the application for MMS message by operating the user terminal device 10R, and sets the A line of the main contract as the line used for mail transmission / reception. Then, the user terminal device 10R is operated so as to acquire the MMS message for which the incoming notification addressed to the A line has arrived. By this operation, the user terminal device 10R establishes a PDP (packet data protocol) context as a packet communication session with the GGSN 223 on the mobile communication network 20 side, and then the telephone number (080- As a user of 2222-aaaa), a TCP / IP connection request including connection information such as the telephone number (080-2222-aaaa) is transmitted to the MMS relay device 232 of the mail processing system 231 (step 1). The MMS relay device 232 that has received the connection request from the user terminal device 10R uses the IP address of the user terminal device 10R on the receiving side as an IN key and uses it from the user information management device (R2M server) 270 for the user terminal device 10R. Subscriber information (for example, telephone number, IMSI, SGSN-IP, PLMN-id), access the subscriber database (CUR) 238, and receive the telephone number of the main contract received from the user terminal device 10R on the receiving side Based on (080-2222-aaaa), subscriber information on the receiving side is acquired (step 2), and authentication processing is executed for the subscriber on the receiving side (step 3).

  Next, the user terminal device 10R on the receiving side uses the IMAP, which is a general-purpose communication protocol for mail, to send information on the telephone number (080-2222-aaaa) of the A line as a predetermined tag (mid) as the line identification information of the mail transmission destination. The “NOOP” command included in the tag) is transmitted to the MMS relay device 232 (step 4). The MMS relay device 232 performs a check process on the “NOOP” command received from the user terminal device 10R on the receiving side, and specifies the transmission destination line of the MMS message (step 5). In this example, the transmission destination line is specified as the A line (main line) of the main contract.

  Next, the MMS relay device 232 receives the IMAP “UID FETCH” command from the user terminal device 10R on the receiving side (step 6), and based on the message identification information (UID: Unique ID) specified in the command. Then, the MMS message data reaching the receiving user is acquired from the MMS server device 233 (step 7), and the acquired MMS message is transmitted to the receiving user terminal device 10R (step 8).

  Next, after transmitting the MMS message, the MMS relay apparatus 232 transmits M-Check-In (reception), which is distribution processing information of the MMS message, to the MDM server 239 (step 9). Next, the MMS relay device 232 receives an IMAP “UID STORE” command from the user terminal device 10R on the receiving side (step 10), and based on the message identification information (UID: Unique ID) specified in the command. The flag of the MMS message delivered to the receiving user stored in the mailbox of the MMS server device 233 is changed to delivered (step 8), and the flag change processing information of the MMS message in the mailbox is used. A certain M-Commit is transmitted to the MDM server 239 (step 11).

  FIG. 17 is a flowchart showing an example of a “NOOP” command check process by the MMS relay device 232 executed in step 5 of FIG. First, the MMS relay apparatus 232 confirms whether or not the line identification information (mid tag) has been received from the receiving-side user terminal apparatus 10R with the “NOOP” command (step 301), and the line identification information (mid tag) is obtained. If received (YES in step 301), it is determined that there is a possibility that the user terminal device 10R on the receiving side is a mail acquisition request from a multi-line compatible terminal device that can use a plurality of lines (A line, B line). The process proceeds to the next check process. On the other hand, if the line identification information (mid tag) has not been received with the “NOOP” command (NO in step 301), it is determined that the request is a mail acquisition from a terminal device that does not support multiple lines and can use only one line. Then, the normal response (tag OK) is transmitted to the user terminal device 10R on the receiving side, and the acquisition of the subscriber information and the authentication process regarding the sub line are skipped, and the process proceeds to the reception process of the “UID FETCH” command.

  Next, if YES in step 301, the MMS relay device 232 extracts the MSISDN portion from the line identification information (mid tag) received by the “NOOP” command from the user terminal device 10R on the receiving side, and has a predetermined format. It is determined whether or not (0A0CDEFGHJK) is met (step 302). Here, if the MSISDN portion of the line identification information (mid tag) matches the predetermined format (YES in step 302), it is determined that there is a possibility of a mail acquisition request from the multi-line compatible terminal device. The process proceeds to the next check process. On the other hand, if the MSISDN portion of the line identification information (mid tag) does not match the predetermined format (NO in step 302), the user terminal device 10R on the receiving side is regarded as an error in the value of the line identification information (mid tag). After an error response, a predetermined response code and response message are returned to the user terminal device 10R, all the information acquired so far is discarded, and the process is stopped (step 303).

  Next, if YES in step 302, the MMS relay device 232 indicates that the MSISDN value of the line identification information (mid tag) received from the receiving-side user terminal device 10R by the “NOOP” command is the user terminal device 10R. It is determined whether it is the same as the telephone number of the A line of the main contract (step 304). Here, when the value of MSISDN of the line identification information (mid tag) is not the same as the telephone number of the A line of the user terminal device 10R on the receiving side (NO in step 304), mail is acquired from the multiline compatible terminal device. It is determined that there is a possibility of request, and the process proceeds to the next check process. On the other hand, if the MSISDN value of the line identification information (mid tag) is the same as the telephone number of the A line of the receiving user terminal device 10R (YES in step 304), the main contract of the receiving user terminal device 10R is It is determined that the request is a mail transmission request from the A line (main line), and the subscriber information acquisition and authentication processes regarding the sub line are skipped, and the process proceeds to the “UID FETCH” command reception process.

  Next, if NO in step 304 above, the MMS relay apparatus 232 determines that the MSISDN value of the line identification information (mid tag) received from the user terminal apparatus 10R on the receiving side with the “NOOP” command is the subscriber information database CUR238. It is judged whether it is the same as the value of the multiline attribute of the user terminal device 10R acquired from (Step 305). Here, if the value of MSISDN of the line identification information (mid tag) is not the same as the value of the multiline attribute (NO in step 305), the B line of the spoofed terminal device or the currently invalid registered in the past is invalidated. After receiving an error response to the user terminal device 10R on the receiving side, the predetermined response code and response message are returned to the user terminal device 10R and acquired so far. All the information is discarded and the processing is stopped (step 306). On the other hand, if the value of MSISDN of the line identification information (mid tag) is the same as the value of the multiline attribute (YES in step 305), the B line (sub line) of the sub contract of the user terminal device 10R on the receiving side It is determined that the request is a mail acquisition request (step 307), and the process proceeds to acquisition and authentication processing of subscriber information related to the sub line.

  FIG. 18 is a sequence diagram illustrating an example of another processing procedure when the user terminal device 10R on the receiving side receives an incoming call notification in the communication system configured as described above and acquires an MMS message corresponding to the incoming call notification. . In the example of FIG. 18, the line used in the user terminal device 10R on the receiving side is a B line (sub line) different from the example of FIG. Steps 1 to 3 and 8 to 13 in FIG. 18 are the same as steps 1 to 3 and 6 to 11 in FIG.

  In FIG. 18, after executing the authentication process (step 3) for the receiving side subscriber as in the case of FIG. 16, the receiving side user terminal device 10R uses the IMAP, which is a general-purpose communication protocol for mail, to send the destination. A “NOOP” command including the information of the telephone number (080-2222-bbbb) of the B line in the predetermined tag (mid tag) is transmitted to the MMS relay device 232 as the line identification information of (step 4). The MMS relay device 232 performs a check process on the “NOOP” command received from the user terminal device 10R on the receiving side, and specifies the transmission destination line of the MMS message (step 5). In this example, it is specified that the transmission destination line is the B line (sub line) of the sub contract.

  Next, the MMS relay device 232 accesses the subscriber database (CUR) 238 and, based on the telephone number (080-2222-bbbb) of the B line (sub line) received from the user terminal device 10R on the receiving side, Subscriber information relating to the receiving side B line (sub line) is acquired (step 6), and subscriber authentication processing is executed for the B line (sub line) (step 7).

  Table 6 shows an example of the subscriber attribute determined in the B line subscriber authentication process in the mail acquisition process. In this example, “mailbox status”, “user reception status”, “user status”, “user generation”, and “subscription status for WAP (packet) communication service” are determined for the subscriber. Here, “mailbox status” is a value corresponding to “active”, “user reception status” is a value corresponding to “no restriction”, and “user status” is “in service” or “incoming call restriction”. “User generation” indicating the generation of the receiving user terminal device 10R is predetermined generation identification information (“30” indicating “3G (third generation)” in the example of Table 6). When “WAP communication service” is a value corresponding to “subscription”, the subsequent processing is continued as in the example of FIG. On the other hand, when at least one value of each subscriber attribute does not satisfy the determination condition values in Table 6, after responding an error to the user terminal device 10R on the receiving side, a response code and a response corresponding to the determination condition not satisfying the above A message is returned to the user terminal device 10R, all the information acquired so far is discarded, and the processing is stopped. In Table 6, when a generation other than “3G (third generation)” is specified, the value of “user generation” is, for example, “20”, 2.5G (second generation) in the case of 2G (second generation). 2.5 generation), “25” is set.

  16 and 18, the case where the MMS message (mail main body) corresponding to the incoming notification is acquired has been described. However, the processing in steps 1 to 5 in FIG. 16 and the processing in steps 1 to 7 in FIG. Requests for mail-related processing such as confirmation processing of mailbox capacity information in the MMS server device 233, acquisition processing of a list of MMS messages in the mailbox, and deletion processing of MMS messages in the mailbox for each line It can also be applied to For example, in order to request confirmation processing of mailbox capacity information from each user terminal device using IMAP, instead of the “UID FETCH” command, a “UID” command, a “GETQUOTA” command, and a “GETQUATARROOT” command And send in combination. In addition, when requesting a process for acquiring a list of MMS messages in the mailbox, a “UID” command and a “LIST” command are transmitted in combination. Further, when requesting the deletion process of the MMS message in the mailbox, the “UID” command and the “EXPUNGE” command are transmitted in combination.

  FIG. 19 shows an example of a schematic configuration of the entire communication system including two mail processing systems 231X and 231Y constructed in the mobile communication networks 20X and 20Y of a plurality of sites (XXX, YYY) corresponding to different regions. It is explanatory drawing shown. In the communication system of FIG. 19, the MMS relay devices 232X and 232Y at each site are connected to be communicable with each other. In addition, the message delivery management devices (MDM servers) 239X and 239Y at each site are configured to be able to transmit and receive data to each other, and data can be transmitted and received between MMS relay devices and MMS server devices at different sites. It is configured. In FIG. 19, the same components as those in FIG. 1 are attached with the same numbers as those in FIG. Or “Y” is attached.

  In the communication system of FIG. 19, the user of the user terminal devices 10S and 10R is connected to a mobile communication carrier that manages and operates the entire mobile communication networks 20X and 20Y in each site (XXX, YYY). Main contracts and sub contracts can be signed between the two. Here, a site contracted for an A line (main line) set to be mainly used by subscribers corresponding to the same subscriber identification information is called a “main contract site”, and the subscriber is the A line. A site contracted for a B line (sub line) set to be additionally used separately from the (main line) is referred to as a “sub contract site”.

  In addition, the MMS message to be distributed transmitted using the mail addresses of the A line and the B line as a transmission source is temporarily stored in the mailboxes of the MMS server devices 233X and Y at the site contracted for the transmission source line of the MMS message. Stored. For example, if the A line and the B line are contracted at the site XXX and the site YYY, respectively, the MMS message to be distributed whose sender is the mail address of the A line is the MMS server of the site XXX where the A line is contracted. It is stored in the mailbox of the device 233X. Also, the MMS message to be distributed whose source is the mail address of the B line is stored in the mailbox of the MMS server device 233Y of the site YYY with which the B line is contracted.

  In addition, the MMS message to be acquired after the incoming call notification transmitted with the mail addresses of the A line and the B line as the transmission destination is the MMS server device 233X, Y at the site contracted for the transmission destination line of the MMS message. Stored in a mailbox. For example, if the A line and the B line are contracted at the site XXX and the site YYY, respectively, the acquisition target MMS message whose destination is the mail address of the A line is the MMS server of the site XXX where the A line is contracted It is stored in the mailbox of the device 233X. Also, the acquisition target MMS message whose destination is the mail address of the B line is stored in the mailbox of the MMS server device 233Y of the site YYY with which the B line is contracted.

  Also, mail related processing information (M-check-) generated by the MMS relay devices 232X and 232Y when mail related processing such as mail acquisition and list acquisition is requested for the mailboxes corresponding to the mail addresses of the A line and the B line. In, M-Commit) is stored and managed in the message delivery management device (MDM server) 239X, Y of the site where the mailbox is located.

  20 designates the date and time at which an MMS message is transmitted with the mail address of the B line contracted at the sub contract site (YYY site) different from the main contract site (XXX site) in the communication system of FIG. It is a sequence diagram which shows an example of the process sequence when transmitting. Table 7 shows the telephone numbers, e-mail addresses, and contract sites (contracts) of the two lines (line A and line B) that can be used in the user terminal device 10S on the transmission side used by the transmission user (Saburo) in the processing example of FIG. This is an example of information on the ground. Table 8 exemplifies information such as telephone numbers of the two lines (A line and B line) that can be used by the receiving-side user terminal device 10R used by the receiving user (child).

  In FIG. 20, first, the user (Saburo) on the transmission side operates the user terminal device 10S to start an application for MMS messages and creates an MMS message. Then, with the B line of the sub-contract set as the line used for mail transmission / reception, specify the destination mail address ("2A@ssssss.jp" of the A line) and send the MMS message. The user terminal device 10S is operated. By this operation, the user terminal device 10S establishes a PDP (packet data protocol) context as a packet communication session with the GGSN 223 on the mobile communication network 20 side, and then the telephone number (090- As a user of 3333-aaaa), a TCP / IP connection request including connection information such as the telephone number (090-3333-aaaa) is sent to the MMS relay device 232X of the mail processing system 231X of the main contract site (XXX site). (Step 1). The MMS relay device 232X of the main contract site that has received the connection request from the user terminal device 10S uses the IP address of the user terminal device 10S on the transmission side as an IN key from the user information management device (R2M server) 270 to the user terminal. After acquiring user management information (for example, telephone number, IMSI, SGSN-IP, PLMN-id) for the device 10S, the subscriber database (CUR) 238X is accessed and received from the user terminal device 10S on the transmitting side. Based on the telephone number (090-3333-aaaa) of the contract, subscriber information on the transmitting side is acquired (step 2), and authentication processing is executed for the subscriber on the transmitting side (step 3).

  Next, the user terminal device 10S on the transmission side uses “MAIL FROM” including information on the telephone number (090-3333-bbbb) of the B line as the transmission line identification information by SMTP, which is a general-purpose communication protocol for mail. The command is transmitted to the MMS relay device 232X (step 4). The MMS relay device 232X performs a check process on the “MAIL FROM” command received from the user terminal device 10S on the transmission side, and identifies the transmission source line of the MMS message (step 5). In this example, the transmission source line is specified as the B line (sub line) contracted at the sub contract site.

  Next, the MMS relay device 232X accesses the subscriber database (CUR) 238X, and based on the telephone number (090-3333-bbbb) of the B line (sub line) received from the user terminal device 10S on the transmitting side, Subscriber information relating to the B line (sub line) on the transmission side is acquired (step 6), and subscriber authentication processing is executed for the B line (sub line) (step 7).

  Next, the MMS relay device 232X receives the “RCPT TO” command for the telephone number (080-2222-aaaa) of the transmission destination A line (main line) from the user terminal device 10S on the transmission side (step 8). Based on the destination telephone number (080-2222-aaaa), the subscriber database (CUR) 238X is accessed to obtain subscriber information on the receiving side (step 9). Thereafter, the MMS relay device 232X receives the data of the MMS message to be transmitted from the user terminal device 10S on the transmission side (step 10), and transfers it to the MMS server device 233Y at the secondary contract site (step 11). The MMS server device 233Y at the secondary contract site stores the MMS message transferred from the MMS relay device 232X at the main contract site in the mailbox as a mail addressed to the A line of the user terminal device 10R on the receiving side.

  FIG. 21 shows the MMS message after receiving the incoming call notification for the MMS message whose destination is the mail address of the B line contracted at the sub contract site (YYY site) different from the main contract site (XXX site) in the communication system of FIG. It is a sequence diagram which shows an example of the process sequence when acquiring a main body. Table 9 shows the telephone numbers, e-mail addresses, and contract sites (contracts) of the two lines (line A and line B) that can be used in the user terminal device 10S on the transmission side used by the transmission user (Ichiro) in the processing example of FIG. This is an example of information on the ground. Table 10 exemplifies information such as telephone numbers of two lines (A line and B line) that can be used by the receiving-side user terminal device 10R used by the receiving user (sago).

  In FIG. 21, first, the receiving user (Sako) operates the user terminal device 10R to start an application for MMS messages, and sets the sub-contract B line as a line used for mail transmission / reception. Then, the user terminal device 10R is operated so as to acquire the MMS message for which the incoming notification addressed to the B line has arrived. By this operation, the user terminal device 10R establishes a PDP (packet data protocol) context as a packet communication session with the GGSN 223 on the mobile communication network 20 side, and then the telephone number (080- As a user of 4444-aaaa), a TCP / IP connection request including connection information such as the telephone number (080-4444-aaaa) is transmitted to the MMS relay device 232X of the mail processing system 231X of the main contract site ( Step 1). The MMS relay device 232X that has received the connection request from the user terminal device 10R uses the IP address of the user terminal device 10R on the receiving side as an IN key from the user information management device (R2M server) 270 for the user terminal device 10R. Subscriber information (for example, telephone number, IMSI, SGSN-IP, PLMN-id), access the subscriber database (CUR) 238X, and receive the telephone number of the main contract received from the user terminal device 10R on the receiving side Based on (080-4444-aaaa), subscriber information on the receiving side is acquired (step 2), and authentication processing is executed for the subscriber on the receiving side (step 3).

  Next, the receiving-side user terminal device 10R uses the IMAP, which is a general-purpose communication protocol for mail, to send information on the telephone number (080-4444-bbbb) of the B line as a predetermined tag (mid) as the line identification information of the mail transmission destination. The “NOOP” command included in the tag) is transmitted to the MMS relay device 232X at the main contract site (step 4). The MMS relay device 232X executes a check process for the “NOOP” command received from the user terminal device 10R on the receiving side, and identifies the transmission destination line of the MMS message (step 5). In this example, the transmission destination line is specified as the B line (sub line) in the sub contract site.

  Next, the MMS relay device 232X at the main contract site accesses the subscriber database (CUR) 238X and receives the telephone number (080-4444-bbbb) of the B line (sub line) received from the user terminal device 10R on the receiving side. The subscriber information on the receiving side B line (sub line) is acquired (step 6), and the subscriber authentication process is executed for the B line (sub line) (step 7).

  Next, the MMS relay device 232X of the main contract site receives the IMAP “UID FETCH” command from the user terminal device 10R on the receiving side (step 8), and stores the message identification information (UID) specified in the command. Based on this, the data of the MMS message delivered to the receiving user is acquired from the MMS server device 233Y at the sub contract site where the B line (sub line) is contracted (step 9), and the acquired MMS message is acquired. It transmits to the user terminal device 10R on the receiving side (step 10).

  Next, after transmitting the MMS message, the MMS relay device 232X at the main contract site transmits M-Check-In (reception), which is distribution processing information of the MMS message, to the MDM server 239X (step 11). . Next, the MMS relay device 232X receives the “UID STORE” command of IMAP from the user terminal device 10R on the receiving side (step 12), and based on the message identification information (UID) specified by the command, The flag of the MMS message delivered to the receiving user stored in the mailbox of the MMS server device 233Y at the contract site is changed to delivered, and M-M which is flag change processing information of the MMS message in the mailbox Commit is transmitted to the MDM server 239X of the main contract site (step 13). The MDM server 239X at the main contract site transfers the flag change processing information (M-Commit) received from the MMS relay device 232X to the MDM server 239X at the sub contract site (step 14).

  FIG. 22 shows the received MMS message addressed to the mail address of the B line contracted at the sub contract site (YYY site) different from the main contract site (XXX site) in the communication system of FIG. It is a sequence diagram which shows an example of the process sequence when transmitting (transfer) to another user as a transmission source. Table 11 shows the telephone numbers, e-mail addresses, and contract sites (contracts) of the two lines (line A and line B) that can be used in the user terminal device 10S on the transmission side used by the transmission user (Saburo) in the processing example of FIG. This is an example of information on the ground. Table 12 exemplifies information such as telephone numbers of the two lines (A line and B line) that can be used by the receiving-side user terminal device 10R used by the receiving user (sago).

  In FIG. 22, first, the user (Saburo) on the transmission side operates the user terminal device 10S to start an application for MMS messages, and sets a sub-contract B line as a line used for mail transmission / reception. , Specify the MMS message to be sent selected from the mail in the mailbox and the mail address of the recipient ("4B@ssssss.jp" on the B line), and forward (send) the MMS message. The user terminal device 10S is operated. By this operation, the user terminal device 10S establishes a PDP (packet data protocol) context as a packet communication session with the GGSN 223 on the mobile communication network 20 side, and then the telephone number (090- As a user of 3333-aaaa), a TCP / IP connection request including connection information such as the telephone number (090-3333-aaaa) is sent to the MMS relay device 232X of the mail processing system 231X of the main contract site (XXX site). (Step 1). The MMS relay device 232X of the main contract site that has received the connection request from the user terminal device 10S uses the IP address of the user terminal device 10S on the transmission side as an IN key from the user information management device (R2M server) 270 to the user terminal. After acquiring user management information (for example, telephone number, IMSI, SGSN-IP, PLMN-id) for the device 10S, the subscriber database (CUR) 238X is accessed and received from the user terminal device 10S on the transmitting side. Based on the telephone number (090-3333-aaaa) of the contract, subscriber information on the transmitting side is acquired (step 2), and authentication processing is executed for the subscriber on the transmitting side (step 3).

  Next, the user terminal device 10S on the transmission side uses “MAIL FROM” including information on the telephone number (090-3333-bbbb) of the B line as the transmission line identification information by SMTP, which is a general-purpose communication protocol for mail. The command is transmitted to the MMS relay device 232X (step 4). The MMS relay device 232X performs a check process on the “MAIL FROM” command received from the user terminal device 10S on the transmission side, and identifies the transmission source line of the MMS message (step 5). In this example, the transmission source line is specified as the B line (sub line) contracted at the sub contract site.

  Next, the MMS relay device 232X accesses the subscriber database (CUR) 238X, and based on the telephone number (090-3333-bbbb) of the B line (sub line) received from the user terminal device 10S on the transmitting side, Subscriber information relating to the B line (sub line) on the transmission side is acquired (step 6), and subscriber authentication processing is executed for the B line (sub line) (step 7).

  Next, the MMS relay device 232X receives an “RCPT TO” command from the transmission-side user terminal device 10S for the telephone number (080-4444-bbbb) of the destination B line (sub line) (step 8), Based on the destination telephone number (080-4444-bbbb), the subscriber database (CUR) 238X of the main contract site is accessed, and the subscriber information on the receiving side is acquired (step 9). Thereafter, the MMS relay device 232X receives data including message identification information (UID) of the received MMS message (transfer target MMS message) from the user terminal device 10S on the transmission side (step 10), and the message identification information. The MMS message to be transferred is acquired from the MMS server device 233Y of the secondary contract site based on (UID) (step 11), and M-Check-In (transmission), which is the distribution processing information of the MMS message, is sent to the MDM server 239X. (Step 12), and transfers the acquired MMS message to be transferred to the MMS relay device 232Y at the secondary contract site (step 13). The sub-contract site MMS relay device 232Y accesses the sub-contract site subscriber database (CUR) 238Y based on the destination telephone number (080-4444-bbbb) and acquires the subscriber information on the receiving side ( Step 14), the MMS message transferred from the MMS relay device 232X at the main contract site is transmitted to the MMS server device 233Y at the sub contract site (Step 15). The MMS server device 233Y at the secondary contract site stores the MMS message transmitted from the MMS relay device 232Y in the mailbox as a mail addressed to the B line of the user terminal device 10R on the receiving side.

  Next, the MMS relay device 232Y at the sub contract site, as in the case of FIG. The incoming call notification written in (Application-ID) is transmitted to the user terminal device 10R on the receiving side (step 16). The MMS relay device 232Y at the secondary contract site transmits M-Check-In (DR), which is distribution processing information of the MMS message, to the MDM server 239Y at the secondary contract site after transmitting the incoming notification ( Step 17).

  FIG. 23 shows a received MMS message addressed to the mail address of the B line contracted at the sub contract site (YYY site) different from the main contract site (XXX site) in the communication system of FIG. It is a sequence diagram showing an example of a processing procedure when transmitting (transferring) a line mail address to another user as a transmission source. The information such as the telephone numbers of the two lines (A line and B line) that can be used in each of the user terminal apparatus 10S on the transmission side and the user terminal apparatus 10R on the reception side is as shown in Tables 11 and 12 above. The same. Also, steps 2-9 and 11-17 in FIG. 23 are the same as steps 2-9, 11-17 in FIG.

  In FIG. 23, the user (Saburo) on the transmission side operates the user terminal device 10S to start an application for MMS messages and creates an MMS message. Then, with the B line of the sub-contract set as the line used for mail transmission / reception, the above-mentioned MMS message is transmitted by designating the destination mail address (“4B@ssssss.jp” of the B line) The user terminal device 10S is operated. Furthermore, the user terminal device 10S is operated so as to designate a transmission target MMS message selected from the mail in the mailbox and to transfer (transmit) the MMS message.

  Then, as in the case of FIG. 22, the MMS relay device 232X at the main contract site receives the “RCPT TO” command from the user terminal device 10S on the transmission side and acquires the subscriber information on the reception side (steps 2 to 2). 9) Thereafter, data including message identification information (UID) of the newly created MMS message to be transmitted and the received MMS message (MMS message to be transferred) is received from the user terminal device 10S on the transmission side ( Step 10). The transmission target MMS message received from the user terminal device 10S on the transmission side is transferred to the MMS relay device 232Y at the sub contract site together with the transfer target MMS message once acquired from the MMS server device 233Y at the sub contract site. It is stored in the server device 233Y (steps 13 and 15).

  The user terminal device 10R on the receiving side uses the MMS message addressed to the B line (mail address) stored in the MMS server device 233Y of the secondary contract site, for example, in the same manner as the mail acquisition procedure shown in FIG. Can be obtained by simple procedures.

As described above, according to the present embodiment, in the user terminal device 10 capable of using a plurality of lines (main line, sub line) in which a plurality of different mail addresses are set for the same subscriber identification information (IMSI), Without activating a plurality of applications, it is possible to appropriately process an incoming mail notification including an MMS message received from the mail processing system 231 while distinguishing the plurality of mail addresses. Therefore, without switching the subscriber identification information or starting a plurality of applications on the user terminal device 10, the incoming notification of the mail with each of the plurality of mail addresses set for the same subscriber identification information as the transmission destination is performed. The user terminal device 10 in which the subscriber identification information is used can be appropriately received and processed.
In the example of FIGS. 9-15 of the said embodiment, although the case where the user terminal device 10R on the receiving side receives the incoming call notification, the processing in steps 10-13 in FIG. 9, the processing in FIG. The processing in steps 12 to 15 in FIG. 13, the processing in steps 10 to 13 in FIG. 14, and the processing in steps 12 to 15 in FIG. 15 are performed without notification of incoming call from the MMS relay device 232 to the user terminal device 10R on the receiving side. When the entire MMS message is transmitted, or when the MMS relay device 232 transmits a delivery confirmation notification (incoming notification to the transmission destination or notification that the transmission of the MMS message has been completed) to the user terminal device 10S on the transmission side. It can also be applied to.

  Further, according to the present embodiment, in the user terminal device 10 capable of using a plurality of lines (main line, sub line) respectively set with a plurality of different mail addresses for the same subscriber identification information (IMSI), Without launching multiple applications, distinguish multiple email addresses, send email transmission requests consisting of MMS messages with each email address as the sender, and email related processing requests for each email address. It can be transmitted to the processing system 231. When the mail processing system 231 receives the mail transmission request or the mail related processing request from the user terminal device 10, the mail processing system 231 determines the line of the mail address corresponding to the request and authenticates the subscriber for the line. Processing is being executed. Therefore, without switching the subscriber identification information or starting a plurality of applications at the user terminal device, the transmission request of the MMS message having each of the plurality of mail addresses set for the same subscriber identification information as the transmission source, , To securely and reliably accept mail-related processing requests for each mail address from the user terminal device 10 in which the subscriber identification information is used, and appropriately process the requested mail transmission and other mail-related processes. Can do.

  In addition, according to the present embodiment, when mails composed of MMS messages for each mail address are stored separately in different sites according to sites contracted for lines (main lines, sub lines) of a plurality of mail addresses. Even so, the mail processing system 231X of the main contract site (XXX site) and the mail processing system 231Y of the sub contract site (YYY site) so that each mail can be properly distributed and each mail can be properly acquired. Mail transfer processing is performed between and. Therefore, mails for a plurality of mail addresses set for the same subscriber identification information are divided into different sites without switching the subscriber identification information (IMSI) or starting a plurality of applications on the user terminal device 10. Even when stored separately, mail distribution, mail acquisition processing, server operation processing, etc. can be appropriately performed across sites.

  In the above-described embodiment, the case of a communication terminal apparatus capable of transmitting and receiving MMS messages for a plurality of lines has been described. The same applies to.

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which shows an example of schematic structure of the whole communication system which concerns on embodiment of this invention. The block diagram which shows an example of the hardware constitutions common to each of the MMS relay apparatus and MMS server apparatus which comprise a mail processing system (MMSC). The functional block diagram which showed the relationship of each function of a mail processing system (MMSC). Explanatory drawing which shows an example of an MMS message. The external view which shows the example of 1 structure of a user terminal device. The schematic block diagram which shows the hardware constitutions of a user terminal device. Explanatory drawing of the software structure in a user terminal device. The functional block diagram which showed the relationship of each function of a user terminal device. The sequence diagram which shows an example of the process sequence when transmitting the MMS message addressed to the user terminal device on the receiving side from the user terminal device on the transmitting side. The sequence diagram which shows an example of the establishment process of a PDP context. 10 is a flowchart illustrating an example of a check process for a “MAIL FROM” command. The flowchart which shows an example of the check process of a multiline attribute. The sequence diagram which shows an example of the other process sequence when transmitting the MMS message addressed to the user terminal apparatus of a receiving side from the user terminal apparatus of a transmission side. The sequence diagram which shows an example of the further another process sequence when transmitting the MMS message addressed to the user terminal device of the receiving side from the user terminal device of the transmitting side. The sequence diagram which shows an example of the further another process sequence when transmitting the MMS message addressed to the user terminal device of the receiving side from the user terminal device of the transmitting side. The sequence diagram which shows an example of the process sequence when acquiring the MMS message corresponding to an incoming call notification. 12 is a flowchart illustrating an example of a “NOOP” command check process. The sequence diagram which shows another example of the process sequence when acquiring the MMS message corresponding to an incoming call notification. Explanatory drawing which shows an example of schematic structure of the whole communication system containing the two mail processing systems constructed | assembled in each mobile communication network of a some site (XXX, YYY). The sequence diagram which shows an example of the process sequence when transmitting the MMS message which makes the transmission source the mail address of the B line contracted in the secondary contract site (YYY site). The sequence diagram which shows an example of the process sequence when acquiring the main body of a MMS message after receiving an incoming call notification about the MMS message which makes the transmission address the mail address of the B line contracted in the sub contract site (YYY site). An example of a processing procedure for transmitting (transferring) a received MMS message addressed to the mail address of the B line contracted at the sub contract site (YYY site) to another user using the mail address of the B line as a transmission source is shown. Sequence Diagram. Processing when sending (transferring) a received MMS message addressed to the mail address of the B line contracted at the secondary contract site (YYY site) to other users together with the new MMS message and using the mail address of the B line as a transmission source The sequence diagram which shows an example of a procedure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 User terminal device 10S User terminal device of transmission side 10R User terminal device of reception side 20 Mobile communication network 210 Radio access network 220 Core network 221 Base station 230 IP network 231 Mail processing system (MMSC)
232 MMS relay device 233 MMS server device 233a Mail box 237 Push-type distribution relay device (PPG server)
238 Subscriber Information Database (CUR)
250 SMSC

Claims (10)

A communication system for providing a mail communication service that can be used from a communication terminal device,
In each of a plurality of different sites, it has a plurality of mail processing systems provided so that mail sent and received can be processed,
The plurality of mail processing systems provided in each of the plurality of sites, the plurality of lines in which a plurality of different mail addresses are respectively set for the same subscriber identification information corresponding to the subscriber of the communication terminal device, A mail processing system provided at a main contract site contracted for a main line set to be used mainly by subscribers corresponding to the same subscriber identification information, and the subscriber added separately from the main line A mail processing system provided at a sub-contract site contracted for at least one sub-line configured to be used,
The email processing system of the main contract site is:
A mail receiving means for receiving a mail whose destination is designated from the communication terminal device of the subscriber;
When the received mail is a mail having a mail address corresponding to the sub line as a sender, a mail transfer means for transferring the mail to a mail processing system of the sub contract site;
With
The secondary contract site email processing system is:
A mail receiving means for receiving a mail transmitted from the mail processing system of the main contract site and having a mail address corresponding to the sub line as a transmission source;
Mail storage means for temporarily storing the received mail so that it can be delivered to a destination of the mail;
A communication system comprising: The communication system of claim 1.
The email processing system of the main contract site is:
A mail transmission request receiving means for receiving a mail transmission request including connection information for transmitting the mail designated by the transmission destination from the communication terminal device of the subscriber;
Subscriber authentication processing means for acquiring subscriber information of a communication terminal device that has transmitted the mail transmission request based on the connection information, and executing authentication processing for a subscriber using the communication terminal device;
Line identification information for receiving line identification information capable of identifying a line for mail transmission corresponding to a mail address set as a transmission source of the mail to be transmitted, from the communication terminal device of the subscriber for which the subscriber authentication processing has been completed. Receiving means;
Line determination means for determining a line for mail transmission corresponding to a mail address set as a transmission source of the mail to be transmitted based on the line identification information;
A communication system further comprising: The communication system of claim 2,
When the mail processing system of the main contract site determines that the mail transmission line is the sub-line, it acquires subscriber information about the sub-line and executes authentication processing for the sub-line. A communication system further comprising processing means. The communication system according to any one of claims 1 to 3,
The communication system according to claim 1, wherein the e-mail for which the e-mail address of the destination is designated is an e-mail for which the date and time to be delivered to the destination is designated. A communication system for providing a mail communication service that can be used from a communication terminal device,
In each of a plurality of different sites, it has a plurality of mail processing systems provided so that mail sent and received can be processed,
The plurality of mail processing systems provided in each of the plurality of sites, the plurality of lines in which a plurality of different mail addresses are respectively set for the same subscriber identification information corresponding to the subscriber of the communication terminal device, A mail processing system provided at a main contract site contracted for a main line set to be used mainly by subscribers corresponding to the same subscriber identification information, and the subscriber added separately from the main line A mail processing system provided at a sub-contract site contracted for at least one sub-line configured to be used,
The email processing system of the main contract site is:
A mail acquisition request receiving means for receiving a mail acquisition request for requesting a mail acquisition process with a mail address corresponding to one of the plurality of lines as a transmission destination from the communication terminal device of the subscriber;
If the mail acquisition request received from the subscriber's communication terminal device is a request for mail acquisition processing with the mail address corresponding to the sub-line as the destination, the mail is processed by the sub-contract site. Mail acquisition means to acquire from the system;
A mail sending means for sending a mail whose destination is a mail address corresponding to the sub line acquired from the mail processing system of the sub contract site to a communication terminal device that has sent the mail acquisition request;
A communication system comprising: The communication system of claim 5,
The mail acquisition request includes connection information for receiving a mail having a mail address corresponding to any of the plurality of lines as a destination,
The email processing system of the main contract site is:
Subscriber authentication processing means for acquiring subscriber information of a communication terminal device that has transmitted the mail acquisition request based on the connection information, and executing authentication processing for a subscriber using the communication terminal device;
Line identification for receiving line identification information capable of identifying a line of a mail transmission destination corresponding to a mail address set as a transmission destination of the mail to be received from the communication terminal device of the subscriber that has completed the subscriber authentication processing Information receiving means;
Line determination means for determining a line of a mail transmission destination corresponding to a mail address set as a transmission destination of the mail to be received based on the line identification information;
A communication system further comprising: The communication system of claim 6.
When the mail processing system of the main contract site determines that the line of the mail transmission destination is the sub line, the sub line that acquires subscriber information about the sub line and executes authentication processing on the sub line A communication system, further comprising authentication processing means. A communication system for providing a mail communication service that can be used from a communication terminal device,
In each of a plurality of different sites, it has a plurality of mail processing systems provided so that mail sent and received can be processed,
The plurality of mail processing systems provided in each of the plurality of sites, the plurality of lines in which a plurality of different mail addresses are respectively set for the same subscriber identification information corresponding to the subscriber of the communication terminal device, A mail processing system provided at a main contract site contracted for a main line set to be used mainly by subscribers corresponding to the same subscriber identification information, and the subscriber added separately from the main line A mail processing system provided at a sub-contract site contracted for at least one sub-line configured to be used,
The email processing system of the main contract site is:
A server mail transfer request receiving means for receiving a server mail transfer request for requesting a mail transfer process with a mail address corresponding to one of the plurality of lines as a transmission destination from the communication terminal device of the subscriber;
If the server mail transfer request received from the communication terminal device of the subscriber is a request for mail transfer processing with the mail address corresponding to the sub line as the destination, the mail is sent to the sub contract site mail. Mail acquisition means to acquire from the processing system;
A server that sends a mail whose destination is the mail address corresponding to the sub-line acquired from the mail processing system of the sub-contract site to the forwarding destination designated by the communication terminal device that has sent the server mail forwarding request Mail forwarding means;
A communication system comprising: The communication system of claim 8,
The server mail transfer request includes connection information for transferring mail having a mail address corresponding to one of the plurality of lines as a destination,
Subscriber authentication processing means for acquiring subscriber information of a communication terminal device that has transmitted the server mail transfer request based on the connection information, and executing authentication processing for a subscriber using the communication terminal device;
A line for receiving line identification information capable of identifying a line for mail transmission corresponding to a mail address set as a transmission source of the mail for server mail transfer from the communication terminal device of the subscriber for which the subscriber authentication processing has been completed. Identification information receiving means;
Line determining means for determining a line for mail transmission corresponding to a mail address set as a mail sender of the server mail transfer target based on the line identification information;
A communication system further comprising: The communication system of claim 9,
When the mail processing system of the main contract site determines that the mail transmission line is the sub-line, it acquires subscriber information about the sub-line and executes authentication processing for the sub-line. A communication system further comprising processing means.

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