JP5046252B2 - IP telephone number search device and method thereof - Google Patents

Description

  The present invention relates to an IP telephone number search apparatus and method. In particular, the present invention relates to an IP telephone number investigation apparatus using a computer that stores IP address information of an IP telephone number to be dialed in a storage device together with investigation date information and a method thereof.

  For example, conventional telephone number surveying devices automatically switch the reason display data indicating the usage status obtained by auto-dialing telephone numbers distributed throughout the country through an ISDN line and the destination telephone number in correspondence with each telephone number. A telephone number investigation device (Patent Document 1) having a telephone number history database registered as history information together with the dialed investigation date, and each VoIP gateway on the IP telephone network sets the IP address of the own device and the telephone number of the telephone under its own device. A gateway (Patent Document 2) that automatically forms a table indicating the relationship between a destination telephone number and a destination IP address in its own device by periodically transmitting / receiving by broadcast, communication terminal interface means, and IP address valid time Whether it has expired, no IP phone transactions are active Only when the three conditions before starting the new IP telephone control are satisfied, an address request for inquiring about the IP address of the IP telephone server corresponding to the DNS server is transmitted, and the IP address of the corresponding IP telephone server is transmitted from the DNS server. An IP client device (Patent Document 3) including an VoIP control unit having an IP address acquisition unit for acquiring an address and an IP network interface unit 7 is connected to a call partner IP phone via the Internet. An IP telephone (Patent Document 4) that performs call processing for transmitting / receiving voice packets to / from a connected IP telephone and transmits images to the IP telephone during a call with the IP telephone (Patent Document 4), SDP to "INVITE" A SIP exchange that enables connection of SIP devices for IP-PBX to which information cannot be assigned, and prevents sound interruption Stem (Patent Document 5) it is known.

Japanese Patent No. 3998284 JP 2007-104534 A JP 2006-33073 A JP 2005-286856 A JP 2009-239564 A

  However, in the conventional automatic telephone number information creation device, for example, when calling a fixed and mobile phone number distributed throughout the country, about 9,999,999 calculated from the number of digits following the telephone number prefix “0”. Nineteen logical value numbers are narrowed down to the out-of-city and local area codes permitted by the Ministry of Internal Affairs and Communications, a list of about 390 million phone numbers is generated, and the computer reads ISDN while reading this phone number list. When a call is made to the line network, since the called terminal includes the telephone number of the transfer telephone or MNP (multi-number portability), even if the ISDN line is disconnected immediately after obtaining the reason display number, the total number is approximately 0. There was a problem of being charged for establishment of 0.005% to 0.29%. For example, since a monthly charge of about 4 million yen is generated, there is a problem that it is difficult to reduce the monthly operating cost of the telephone number information automatic creation device. In addition, with the recent progress in telecommunications technology, the network has changed from an analog line network to a digital line network. From now on, a plan to build an IP telephone network using FTTH (optical fiber) has been promoted and used by conventional analog telephones. The public line network that uses FTTH (optical fiber) from the copper wire (dry copper) that has been spread throughout the country, and IP telephones (for example, telecommunications carriers that receive the most IP phone number designation of 5.78 million cases) It is expected that the telephone number starting with the prefix “050” is also increased).

  When a call is made from an ISDN line network to an IP phone using a conventional method and a telephone number usage status survey is conducted, it is almost 100% charged, and all IP phone numbers are issued via the ISDN network. There is a problem that enormous research costs are incurred if you call and survey. It is an object of the present invention to provide an IP telephone number search device that is not charged without connecting a communication line to a communication terminal of a telephone number that is calling in a telephone number usage situation check. Therefore, since the IP telephone number checking device does not make a call with the called IP telephone, it does not ring the IP telephone, so that the called user is not disturbed. In addition, a new IP phone number search device will be provided to shift from the first generation phone number information acquisition technology using analog line signals to the second generation phone number information acquisition technology using ISDN line signals. It is also a technical problem of the present invention to correspond to a third generation telephone number information acquisition technique using an IP telephone line signal.

  The present invention has been made in response to the above problems, and calls an IP telephone number through an Internet network from an IP telephone number search apparatus using a computer as a proxy server, and stores the IP address of the called IP telephone. It is an object of the present invention to provide an IP telephone number search device using a computer that stores information together with search date information.

  Then, whether the IP telephone number for auto-dial is the “valid” IP telephone number assigned to the subscriber in the communication business SIP server, or the “invalid” IP that is not assigned in the communication business SIP server. It is an object of the present invention to provide an IP telephone number investigation apparatus and method that can determine whether it is a telephone number or whether an IP address of an IP telephone can be acquired.

  Here, the SIP server is a server that uses a protocol called SIP (Session Initiation Protocol) to associate a telephone number with an IP address and perform call control for calling a partner telephone number and connecting a telephone line. . Used in conventional IP phone service and NGN (Next Generation Network). Especially in NGN, it has the function of instructing bandwidth control, which is its greatest feature, and providing accounting and authentication information to external servers connected to the Internet, and plays a central role in the NGN server group. Is responsible. There are two types of SIP servers: software types installed on general-purpose servers and types that provide hardware equipped with SIP server software. Hardware-mounted SIP servers have high reliability and high-speed processing capability for NGN. .

  NGN is a next-generation network constructed based on the Internet protocol IP. Currently, a telephone network and an IP network for Internet services are maintained separately. The next-generation network aims to provide an IP-based network on which various services such as broadcasting, authentication services, location information services, and multimedia conferencing are provided in addition to telephone and Internet connections. A ubiquitous network society can be realized by constructing an IP-based network with improved QoS and security and deploying various services. The first step is to replace the telephone network with the IP network in each country. In Japan, KDDI has completed IP conversion by 2008, and the NTT Group plans to use IP by the first half of 2010. Currently, NGN standardization is being promoted mainly by ITU-T. The Ministry of Internal Affairs and Communications established the “IP Network Equipment Committee” in November 2005, and the “Next Generation IP Network Promotion Forum” through industry-government-academia collaboration in December 2005.

  In order to achieve the above object, the IP telephone number search device according to the present invention, for example, as shown in FIG. A storage device 12 for storing the number list, and a SIP telephone transmission means for reading out the number list from the storage device 12, connecting to the Internet network 16 through the proxy server 14 on the transmission side, and making an automatic dial transmission to the transmission number in the number list ( Session establishment request information (for example, INVITE) is transmitted to the Internet network 16 through the call origination proxy server 14 and the call origination proxy server 14, and provisional response information (for example, INVITE) is transmitted from the origination side proxy server 14. , Ringing) and received in the survey date information and provisional response information Automatic by IP address acquisition means (IP address acquisition software program executed by the CPU of the computer) for acquiring IP address information of the incoming SIP telephone 20 and storing it in the storage device 12, and SIP telephone call means (phone call software) Line disconnecting means (line disconnecting software program executed by the CPU of the computer) for disconnecting the telephone line of the dialed outgoing call number.

  Then, the IP telephone number checking device 10 determines whether the transmission number transmitted from the proxy server 14 on the transmission side is a valid IP telephone number (IP address specified) designated by the telecommunications carrier. It is determined whether or not the IP phone number is invalid (IP address is not specified) before ringing the incoming SIP telephone 20, and the caller ID is automatically set at a predetermined interval once every month or every other month or quarter. The telephone number history information can be accumulated by making a call by dial transmission means and associating the transmission number, the survey date and the IP address in the storage device 12 and storing them in the storage device 12.

  In addition, the proxy server determines whether or not the transmission number transmitted by the auto-dial transmission means is “valid” designated by the telecommunications carrier or “invalid” IP phone number not designated by the telecommunications carrier. Can be determined based on the presence or absence of an IP address in the provisional response signal sent back, and by recording the acquired IP address in the storage device, the history of the IP address information of the SIP telephone can be accurately accumulated and billing due to calls can be prevented can do.

The block diagram of the IP telephone number investigation apparatus of this invention. The figure which shows the operation | movement sequence of the IP telephone number investigation apparatus of this invention.

  An embodiment of the present invention will be described with reference to FIG. The IP telephone number checking device 10 of the present embodiment schematically accesses the Internet network 16 through the proxy server A (14) on the caller side using a personal computer or workstation, and is addressed to the caller number (SIP telephone 20). A session establishment request (for example, INVITE) is transmitted to the proxy server B (18) on the receiving side, and provisional response information (for example, Ringing) returned by the proxy server B18 on the receiving side is transmitted via the Internet 18 to the transmitting side. Proxy server A (14), and the IP address information of the SIP telephone 20 is acquired from the proxy server A (14) on the transmission side, and the survey date information and the IP address are stored in the storage device 12 in association with the transmission number. Then, disconnect the call line of the calling number. As a result, the IP address of the SIP telephone 20 can be grasped instantaneously, and the telephone line can be disconnected before the SIP telephone 20 rings, so that the SIP telephone 20 can be prevented from ringing.

  1 is connected to a storage device 12 (for example, a hard disk) for storing a database DB and a proxy server A (14) on the calling side, and is not shown inside. A CPU, memory, I / O, and a storage unit for storing computer software are provided. In the storage device 12, a serial number (for example, 0000 to 9999) having a predetermined number of digits is added to the IP telephone station number (for example, 050 + ABCD). A number list of outgoing numbers is stored. The IP telephone number is a number with a predetermined number of digits that is specified by the Ministry of Internal Affairs and Communications to a telecommunication carrier.

  The IP telephone number checking device 1 performs routing in the order of the proxy server 14, the Internet network 16, and the proxy server 18 by transmitting the transmission number of the SIP telephone 20 by the auto-dial transmission means. Call processing can be performed. However, the present invention is not limited to the calling number in the number list. For example, the IP telephone station number (050 + ABCD) disclosed in the storage device 12 is stored as a number list, and the counter means is used while reading the number list. It is also possible to generate a transmission number by adding numbers “0000” to “9999” and transmit the transmission number by the automatic dial transmission means.

  With reference to FIG. 1, the operation of the IP telephone number search device 10 will be described. Schematically, in the IP phone number check, the IP phone number check device 10 automatically dials a predetermined number of digits consisting of digits from “0” to “9” to make an SIP system (IP phone compatible with SIP). ) To start communication.

  Then, the IP telephone number checking device 10 routes the session establishment request information (INVITE) including the IP address information of the calling side and the called side to the Internet network 16 via the proxy server A (14). The proxy server B (18) connected to the Internet network 16 determines whether the destination IP address matches the IP address of the SIP telephone set 20 from the routed session establishment request information (INVITE).

  When the IP addresses match, the proxy server B (18) returns provisional response information (Ringing) to the proxy server A (14) via the Internet network 16 and performs call control of the SIP telephone set 20. In this case, the IP telephone number checking device 10 obtains the IP address of the incoming SIP telephone 20 stored in the proxy server A (14), and then sends the call line disconnection information (BYE) to the proxy server A (14). The communication line through the Internet network 16 is disconnected.

  Therefore, the IP telephone investigation device 10 disconnects the telephone line before receiving the success response information (200 OK) returned from the proxy server B (18) via the Internet network 16 and the proxy server A (14). Can do.

  The core configuration requirement of the present embodiment is that it includes a line disconnecting means for transmitting line disconnection information for forcibly disconnecting a telephone line after acquiring the IP address information of the SIP telephone set 20 to the proxy server A (14). is there.

  Here, the proxy server A (14) acquires an IP address corresponding to the transmission number for a SIP server (not shown) connected to the proxy server A (14). For example, the SIP server has an IP address “10.11.12.10” of the proxy server A (14), an IP address “10.11.12.13” of the IP telephone number search device 10, and a proxy server B (18). IP address “20.21.22.20” and IP address “20.21.22.23” of SIP telephone 20 corresponding to the calling number are registered, and the calling number (IP phone number) is converted to an IP address. be able to.

  The proxy server A (14) is connected to a location server (not shown). The location server includes the IP address “10.11.12.110” of the proxy server A (14), the IP address “10.11.12.13” of the IP telephone number search device 10, and the proxy server B (18). In addition to the IP address “20.21.22.20” and the IP address “20.21.22.23” of the SIP telephone 20, the proxy server A (14), the IP phone number checking device 10, the proxy server B (18) The URL of the SIP telephone 20 is also registered.

  The IP telephone number checking device 10 activates the SIP telephone calling means, reads the number list in the storage device 12, and automatically dials the calling number in the number list to the proxy server A (15) to make a session establishment request (INVITE). Request creation. This calling number is a numeric IP telephone number, and the IP address of the IP telephone number search device 10 is “10.11.12.13”.

  The proxy server A (14) creates a session establishment request message (hereinafter abbreviated as “INVITE”). Specifically, a start line, a header field, a blank line, and a body of “INVITE sip: SIP SIP 20 URL SIP / 2.0” are created in the request message, and the proxy server A (14) Is transmitted to the proxy server B (18) through the Internet network 16.

  The proxy server A (14) returns a message indicating that the status code “100 Trying” is being executed to the IP telephone investigation device 10. Thereby, the IP telephone investigation apparatus 10 can determine the event that INVITE was transferred to the proxy server B (18).

  The proxy server B (18) transfers the INVITE transmitted by the proxy server A (14) to the SIP telephone 20 and returns a message indicating that the status code “100 Trying” is being executed to the proxy server A (14). Thereby, the proxy server A (14) can determine the event that INVITE was transmitted to the SIP telephone set 20.

  Next, when receiving the status code “180 Ringing” as provisional response information from the SIP telephone set 20, the proxy server B (18) immediately transfers the status code “180 Ringing” to the proxy server A (14). In other words, the provisional response information returned from the SIP telephone 20 is response information that responds to the request message for the first time. The IP address “20..IP” of the SIP telephone 20 is displayed in the “Contact:” line of the status code “180 Ringing” message. 21.22.23 "is described.

The description content of the “180 Ringing” message is illustrated.
SIP / 2 180 Ringing
Via: URL of SIP / 2 / UDP proxy server B (18): xxxx
: Received = IP address “20.21.22.20” of proxy server B (18)
Via: URL of SIP / 2 / UDP proxy server A (14) xxxx
: Received = IP address “10.11.12.10” of proxy server A (14)
Via: URL of SIP / 2 / UDP IP telephone investigation device 10 xxxx
: Received = IP address “10.11.12.13” of the IP telephone investigation device 10
FROM: Display name [sip: URL of the IP telephone investigation device 10]; tag = xxxx
TO: Display name [sip: URL of SIP telephone 20]; tag = xxxx
Call-ID: xxxxxxxxxxxx @ Domain name of proxy server B (18) Cseq: 1 INVITE
Contact: [sip: IP address of SIP telephone 20 “20.21.22.23”]
Contact-Length: 0

  The proxy server A (14) immediately transfers the status code “180 Ringing” received from the proxy server B (18) to the IP phone number search device 10, and the IP phone number search device 10 sends a “180 Ringing” message. By receiving, the IP address “20.21.22.23” of the SIP telephone 20 can be acquired.

  The SIP telephone set 20 is not ringing when the status code “180 Ringing” message is returned. That is, the SIP telephone set 20 immediately sends an “180 Ringing” message to the proxy server B (18) after receiving INVITE. However, the ringing tone is started several seconds after the completion of the “180 Ringing” message reply process.

  Therefore, when the IP telephone number search device 10 receives the “180 Ringing” message transferred through the Internet network 16 and the proxy server A (16), the ringing of the SIP telephone 20 has not started.

  When the IP telephone number checking device 10 disconnects the telephone line before the SIP telephone 20 rings, the IP telephone number checking device 10 performs reception determination of the “180 Ringing” message, and immediately determines that “180 Ringing” is a provisional response. Call line disconnection information “BYE” for disconnecting the call line of the calling number is transmitted to the proxy server A (14) to disconnect the call line, and then the next call number is read from the storage device 12 to check the IP phone number described above. The process can be repeated.

  The IP telephone number investigation device 10 stores the IP address “20.21.22.23” information and the investigation date information of the SIP telephone 20 described in the received “180 Ringing” message in association with the calling number. By storing in the device 12, the usage history and IP address information of the SIP telephone 20 can be accumulated in the storage device 12.

  The IP telephone number checking device 10 attempts to make an automatic dialing call for all valid IP telephone numbers and invalid IP telephone numbers that are not currently used during a predetermined period (for example, one month), and whether or not there is an IP address. Thus, it is possible to determine whether the IP telephone number is valid or invalid (missing number).

  The user transfers or downloads the number list stored in the storage device 12 and the IP address information and the survey date information stored in association with the number list to another storage medium for several months or years of IP. By accumulating telephone number information, IP telephone number history information can be generated.

  In the embodiment of the present invention described above, the status code “180 Ringing” message is used as the provisional response signal. However, the present invention is not limited to the “180 Ringing” message, and the response status codes shown in Table 1 below are used. Since the proxy server A (14), the proxy server B (18), and the SIP telephone 20 immediately return a message even if the included “1xx” status codes are used, the above-described IP telephone number checking device 10 is operated. Needless to say, we can do it.

  FIG. 2 is a diagram showing an operation sequence of the IP telephone number search device according to the embodiment of the present invention. The IP telephone number search device 10 repeats the sequence of steps S1 to S5 shown until the transmission of all the calling numbers in the number list stored in the storage device 12 is completed by the SIP phone calling means.

  In step S1, the IP telephone number checking device 10 reads out the number list stored in the storage device 12, transmits the transmission number to the proxy server A (14) by the SIP telephone transmission means, and shifts the processing to step S2.

  The IP telephone number checking device 10 generates INVITE of the session establishment request in step S2, transmits INVITE to the proxy server A (14), and shifts the processing to step S3.

  In step S3, the IP telephone number checking device 10 determines whether or not a provisional response has been received from the proxy server A (14), and waits until a provisional response of “180 Ringing” information is received, for example.

  If the IP telephone number checking device 10 determines to receive “180 Ringing” information, which is a provisional response, it branches the process to step S4.

  In step S4, the IP telephone number investigation device 10 acquires the IP address of the SIP telephone 20 included in the provisional response information, and stores the investigation date information and the IP address information in the storage device 12 in association with the calling number. The process proceeds to step S5.

  In step S5, the IP telephone number checking device 10 transmits “BYE” request information for disconnecting the call line of the calling number to the proxy server A (14) and ends the processing.

  The IP telephone number investigation device 10 of the present embodiment is exchanged from an area code (for example, a prefix of “050” for an IP telephone or a fixed and mobile telephone prefix when an NGN is prepared) and a local area code (XXXX). Identifying a station or SIP server, and using the arrangement characteristics of the telephone number based on the identified station number (to obtain a logical number from 4 digits 0000 to 9999 for the subscriber number), the effectiveness of the IP telephone existing in the country (for example, The IP address of the SIP phone 20 described in the provisional response information indicating the number currently being used) is transferred from the SIP phone 20 to the proxy server B (18), the Internet network 16, and the proxy server A (14) in this order. Then, the IP address of the SIP telephone 20 stored in the proxy server A (14) is acquired and stored in the hard disk as the storage device 12.

  In the present embodiment, the IP address of the SIP telephone 20 can be acquired. From this IP address, the area where the SIP telephone 20 is installed is determined. The location where the SIP phone is installed is known as the address where the person reported using the IP address, the time when the SIP phone was ordered, the time when the same person ordered the next time, etc. Can be used to prevent fraud, such as impersonation, by checking the integrity of.

  In this case, it goes without saying that in addition to the IP phone number information history check, the location information of the SIP phone 20 can be used for credit examination. For example, if the area where the IP address is used in Sagamihara City, Kanagawa Prefecture is within Shizuoka Prefecture, we will handle impersonation and fraud by performing careful order processing (billing resident's card, cash on delivery, field survey, etc.) Can be prevented.

  As described above, according to the IP telephone number investigation device 10 of the present embodiment, the valid and invalid phone number tables can be stored and stored in the storage device 12 from the existing IP phone numbers. The number table of numbers is re-examined using the IP telephone number investigation device 10, and update information of a new telephone number can be obtained from time to time, and valid IP telephone numbers that can make a call from among invalid telephone numbers are classified. can do.

  Although the present embodiment has been described with respect to the Internet network, the present invention is not limited to the above-described embodiment, and it goes without saying that the configuration requirements can be appropriately changed according to the development of the communication line network.

10 IP telephone number checking device 12 Database 14 Proxy server A
16 Internet 18 Proxy server B
20 SIP telephone

Claims (3)

A storage device for storing a number list of outgoing numbers obtained by adding a continuous number of a predetermined number of digits to an IP telephone station number;
Reading the number list from the storage device, connected to the Internet network via the originating side of the proxy server, a SIP telephone call means for automatic dialing to the calling number in the number list,
The session establishment request information is transmitted to the Internet network through the originating proxy server, the provisional response information returned by the terminating proxy server is received from the originating proxy server , the survey date information and the provisional response information are received. IP address acquisition means for storing in the storage device the IP address information of the called SIP telephone included in
And a line disconnection means for disconnecting the communication line of the calling number which is auto dialing prior call success response information even after storage of the provisional response information by the SIP telephone call means,
It is determined whether the calling number is a valid IP telephone number designated by a telecommunications carrier or an invalid IP telephone number not designated by the presence or absence of the IP address information;
The IP telephone number investigation device using a computer, wherein the use history of the SIP telephone corresponding to the calling number and the IP address information thereof are stored in a storage device in association with the investigation date information every time the investigation is conducted. . A storage device used for an IP telephone number search device,
A number list of outgoing numbers in which a continuous number of a predetermined number of digits is added to the IP telephone number,
The session establishment request information is transmitted to the Internet network through the proxy server on the transmission side by the IP address acquisition means, the provisional response information returned by the proxy server on the reception side is received from the proxy server on the transmission side, the survey date information and the Storing the IP address information of the called SIP telephone set included in the provisional response information;
It is determined whether the calling number is a valid IP telephone number designated by a telecommunications carrier or an invalid IP telephone number not designated by the presence or absence of the IP address information;
A storage device characterized in that usage history of the SIP telephone corresponding to the calling number and its IP address information are stored in the storage device in association with the survey date information every time the survey is conducted. Reading the number list from the storage device for storing the number list of calling numbers that are added to the sequence number of a predetermined number of digits in the IP telephone station number to connect to the Internet network via the originating side of the proxy server, the calling in said number list the method comprising the steps of: auto dial by the SIP phone call means to the number,
Transmitting the session establishment request information to the Internet network through a proxy server of the calling party receives a provisional response information proxy server replies the incoming side from the proxy server of the calling party, surveys of date information by the IP address obtaining unit And acquiring the IP address information of the called SIP telephone included in the provisional response information and storing it in the storage device;
And a step of cutting by auto dialing the line cutting means coming into previous success response information even after storage of the calling number the provisional response information call line by the SIP telephone call means,
It is determined whether the calling number is a valid IP telephone number designated by a telecommunications carrier or an invalid IP telephone number not designated by the presence or absence of the IP address information;
An IP telephone number investigation method using a computer, wherein the use history of the SIP telephone corresponding to the calling number and the IP address information thereof are stored in a storage device in association with the investigation date information every time the investigation is conducted. .

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