JP2007089034A - Information communication device and control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information communication device capable of communicating with a main device stably by making a change so that other existing communication means of the device registered in an ENUM are used even if a noncommunicable state is generated during communication, and to provide a method of controlling the information communication device. <P>SOLUTION: The information communication device 100 receives information by using a communication means selected by an opposite terminal unit, based on a NAPTR resource record registered in a DNS server of ENUM. The information communication device 100 comprises a detection means for detecting a non-receivable state in a communication means corresponding to a specified NAPTR resource record in the NAPTR resource records registered in the DNS server, and an NAPTR resource record change means for accessing the DNS server of ENUM based on the detection output of the detection means to change the NAPTR resource record so that the NAPTR resource record corresponding to the communication means where the non-receivable state is detected is not selected by the other terminal unit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an information communication apparatus and a control method therefor, and in particular, even if a state in which communication cannot be performed occurs during communication, other existing communication means of the apparatus registered in ENUM (= tElphone Number Mapping) is used. It is related with the information communication apparatus which can communicate with this apparatus stably by changing in this way, and its control method.

  Conventionally, in facsimile communication, when the memory for temporarily storing received data becomes full during data reception, the communication is interrupted, and the received data stored in the memory is printed out or transferred to an external device. Then, a processing operation for rejecting data reception is performed until a free area in which data reception can be continued is secured in the memory.

  On the other hand, the transmitting side device that transmits data tries to transmit untransmitted data, but the communication is performed even if the transmitting side device transmits data if the memory of the receiving side device that receives the data is not released from the full state. Is interrupted, and the same processing operation is repeated until useless communication is performed until the memory of the receiving apparatus is released from the full state.

  In recent years, destination information and communication means registered in the server using ENUM technology are updated according to the schedule, and data is always received by familiar communication devices such as printers, telephones, facsimile machines, e-mail devices, etc. Technology such as these has become widespread.

  This ENUM technology is an E.U. The communication means that can be used by the communication partner and the communication means by converting the telephone number based on the 164 recommendation into a domain name in the ENUM format, sending the converted domain name to the DNS (= domain name server) for ENUM Can be obtained in URI format.

For example, Patent Document 1 discloses that a user inputs a name or identifier of a communication partner, for example, a domain name to an interface device, and retrieves a telephone number associated with the name or identifier of the communication partner, and dials the retrieved telephone number. A method has been proposed for assigning a name or identifier to a communication network resource location where a call can be made.
JP 2003-125099 A

  By the way, the above-mentioned Patent Document 1 discloses an apparatus and method for changing to use other existing communication means in addition to the communication means incapable of communication when communication becomes impossible for some reason during communication. Not disclosed.

  Therefore, according to the present invention, even if a state where communication is not possible occurs during communication, the communication with the apparatus can be stably performed by changing the existing communication means of the apparatus registered in ENUM to be used. An object of the present invention is to provide an information communication device and a control method thereof.

  In order to achieve the above object, the invention according to claim 1 is an information communication apparatus for receiving information using a communication means selected by a partner terminal apparatus based on a NAPTR resource record registered in an ENUM DNS server. A detecting means for detecting a non-receivable state of a communication means corresponding to a specific NAPTR resource record among the NAPTR resource records registered in the DNS server, and accessing the ENUM DNS server based on the detection output of the detecting means. And a NAPTR resource record changing means for changing the NAPTR resource record so that the NAPTR resource record corresponding to the communication means detected to be unreceivable is not selected by the counterpart terminal apparatus.

  Further, in the invention of claim 2, in the invention of claim 1, the NAPTR resource record changing means sets the priority of the NAPTR resource record corresponding to the communication means detected as being incapable of reception by the detecting means to another The NAPTR resource record corresponding to the communication means is changed to be lower than the priority order.

  Further, in the invention of claim 3, in the invention of claim 1, the NAPTR resource record changing means performs a change to delete the NAPTR resource record corresponding to the communication means detected as being incapable of reception by the detecting means. It is characterized by that.

  The invention according to claim 4 is the ENUM DNS server according to any one of claims 1 to 3, wherein the communication means that is detected as being incapable of reception by the detecting means returns to the state in which it can be received. And NAPTR resource record recovery means for recovering the NAPTR resource record changed by the NAPTR resource record change means to the original state.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the invention, the communication means detected by the detecting means as being incapable of receiving is a facsimile communication means, and the incapable of receiving state is: The remaining storage capacity of the storage means for storing the document received by the facsimile communication means is less than the capacity necessary for storing the document.

  According to a sixth aspect of the invention, in any of the first to fourth aspects of the invention, the communication means detected by the detection means as being incapable of receiving is a facsimile communication means, and the incapable of receiving state is: The reception function of the facsimile communication means is in a state of failure.

  According to a seventh aspect of the present invention, in any one of the first to fourth aspects of the invention, the communication means detected by the detecting means as being incapable of receiving is a facsimile communication means, and the incapable of receiving state is: The print function for printing a document received by the facsimile communication means is in a state where a failure has occurred.

  The invention according to claim 8 is an information communication apparatus control method for receiving information using a communication means selected by a partner terminal apparatus based on a NAPTR resource record registered in an ENUM DNS server. The communication unit corresponding to a specific NAPTR resource record among the NAPTR resource records registered in the NAPTR resource record is detected by the detection unit, and the DNS server of the ENUM is accessed based on the detection output of the detection unit, The NAPTR resource record is changed by the NAPTR resource record changing means so that the NAPTR resource record corresponding to the communication means detected to be unreceivable is not selected by the counterpart terminal apparatus.

  The NAPTR resource record changing means may change the priority of the NAPTR resource record corresponding to the communication means detected by the detecting means to be in an unreceivable state. The NAPTR resource record corresponding to the communication means is changed to be lower than the priority order.

  Further, the invention of claim 10 is the invention of claim 8, wherein the NAPTR resource record changing means performs a change to delete the NAPTR resource record corresponding to the communication means detected as being unreceivable by the detecting means. It is characterized by that.

  The invention according to claim 11 is the DNS server of the ENUM in the invention according to any one of claims 8 to 10, when the communication means detected by the detecting means as being in a state where reception is impossible returns to the state where reception is possible. And the NAPTR resource record changed by the NAPTR resource record changing means is restored to the original state by the NAPTR resource record restoring means.

  According to a twelfth aspect of the invention, in any of the eighth to eleventh aspects, the communication means detected by the detection means as being incapable of receiving is a facsimile communication means, and the incapable of receiving state is: The remaining storage capacity of the storage means for storing the document received by the facsimile communication means is less than the capacity necessary for storing the document.

  According to a thirteenth aspect of the present invention, in any one of the eighth to eleventh aspects, the communication means detected by the detecting means as being incapable of receiving is a facsimile communication means, and the incapable of receiving state is: The reception function of the facsimile communication means is in a state of failure.

  According to a fourteenth aspect of the present invention, in the invention according to any one of the eighth to eleventh aspects, the communication means detected by the detection means as being incapable of receiving is a facsimile communication means. The print function for printing a document received by the facsimile communication means is in a state where a failure has occurred.

  According to the information communication apparatus and the control method thereof of the present invention, when communication is disabled for some reason during communication, other existing communication means included in the apparatus is provided in addition to the communication means that is disabled. Since the NAPTR-RR information is changed so as to be used, other existing communication means provided in the present apparatus can be used efficiently.

In addition, when communication becomes impossible for some reason during communication, the NAPTR-RR information is changed so that communication can be performed with a device that performs communication on behalf of this device. The device can be used effectively. When the communication means that has become unable to communicate is restored to a communicable state, the NAPTR-RR information is changed so that the communication means can be used. There is an effect that can be performed.

  Hereinafter, an embodiment of an information communication apparatus and a control method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram showing an example of a connection state of an information communication apparatus 100 according to the present invention.

  As shown in FIG. 1, an information communication apparatus 100 is connected to the Internet 180 and a public network telephone line (PSTN) 200. The Internet 180 includes computers 30 and 40 and an Internet FAX apparatus capable of WWW and electronic mail communication. (= IFAX device) 50 and other terminal devices are connected, and the public network telephone line (PSTN) 200 has various terminal devices such as a facsimile communication device (hereinafter referred to as “FAX device”) 10 and a telephone (not shown). Is connected.

  Also, an ENUM system 60 to which the ENUM technology is applied is connected to the Internet 180, and is connected to an ENUM DNS 190 (hereinafter referred to as “ENUM DNS 190”) that constitutes the ENUM system 60.

  The ENUM mentioned here is the ITU-T E.E. NAPTR (Naming Authority Pointer) -RR (= Resource Record) registered in the ENUM DNS 190 using the telephone number based on the H.164 recommendation as a key. It is a mechanism for obtaining one or a plurality of applications corresponding to a telephone number based on the 164 recommendation in a URI (= Uniform Resource Identifiers) format.

  NAPTR-RR records information such as a communication type associated with a domain name based on a telephone number, for example, a type of communication protocol, an address of a communication partner, a priority of communication means, and the like, which will be described later in detail. .

  By ENUM, one E.E. 164 can be associated with one or more available applications on the Internet 180. Communication means other than the telephone for the telephone number based on 164 can be provided in an integrated manner.

  As shown in FIG. Refer to NAPTR-RR information in which information such as communication means and address that can be used by the communication partner terminal device including the own device (information communication device 100) registered in ENUM DNS 190 based on the telephone number based on 164 is recorded. It is possible to communicate with the communication partner terminal device by starting an application suitable for the communication partner terminal device.

  In addition, the communication partner device that communicates with the own device refers to the NAPTR-RR information related to the own device, starts an application appropriate for the communication partner terminal device, and establishes a communication between the communication partner terminal device and the own device. Can communicate with each other.

  For example, when the ENUM DNS 190 is inquired based on the domain name associated with the telephone number of the communication partner to which information communication is to be performed or the telephone number of the own apparatus (information communication apparatus 100), the ENUM DNS 190 associates with the domain name. NAPTR-RR information is returned.

  If the URI information “sip: info@nic.ad.jp” is obtained from the NAPTR-RR information, for example, the application program uses the SIP for the “sip: info@nic.ad.jp” session. It is possible to establish a session by recognizing that it is possible to establish an application, SIP protocol, etc.

 Also, for example, if information on Internet FAX communication is obtained as communication means from the NAPTR-RR information, an application or protocol for performing Internet FAX communication control is started to perform Internet FAX communication.

  The applications include telephone, SIP, H.264. 323, facsimile, electronic mail, instant messenger, Internet telephone, electronic mail, WWW, etc. are assumed.

  The configuration of the information communication apparatus 100 capable of such information communication will be described in detail with reference to FIG.

  FIG. 2 is a block diagram showing an example of a functional configuration of the information communication apparatus 100 according to the present invention.

  As shown in FIG. 2, the information communication apparatus 100 is configured to be able to send and receive information via the public network telephone line 200 and the Internet 180. An ENUM DNS 190 that provides NAPTR-RR information corresponding to a domain name based on the telephone number 164 is connected.

  The information communication apparatus 100 includes a system control unit 101 that performs overall control of the information communication apparatus 100, a scanner unit 103 that reads a document image at a predetermined resolution, a printer unit 104 that records and outputs an image at a predetermined resolution, and an information An operation / display unit 105 having a display unit for displaying various operation keys and various information used in operations for setting setting information, operation instructions, and the like of the communication apparatus 100, and an image read from the scanner unit 103 or The image storage unit 102 for storing received images, the RAM (= Random Access Memory) 106 for storing information such as system data and the address of the communication partner, and the transmission / reception of image information via the public network telephone line 200 Transmission / reception between the FAX unit 120 that performs processing and the DNS 190 for ENUM via the Internet 180 ENUM DNS processing unit 130 that controls processing and transmission / reception of received information, transport protocol control unit 140 used for communication of transport protocols such as HTTP and SIP, and ENUM update information, and e-mail type Internet facsimile communication An e-mail iFAX unit 140 that performs transmission / reception processing of image information and the like by a method, and TCP (= Transmission Control Protocol) / UDP (= User Datagram Protocol) / IP that performs protocol control of a transport layer and a network layer of the Internet 180 = Internet Protocol) control unit 108 (hereinafter referred to as “TCP / UDP / IP call control unit 108”) and a network interface that performs communication control below the data link layer. A case 109 is provided, and control signals and data signals of these units are transmitted and received via the bus 107.

  The information communication apparatus 100 and the Internet 180 are connected via a local network 170 such as a LAN (= Local Area Network), for example, and the Internet 180 and the information communication apparatus 100 are connected to the local network 170. A server (not shown) or the like necessary for transmitting and receiving is installed, and the server manages the information communication apparatus 100 and various terminal apparatuses connected to the local network 170.

  The communication device 100 and the Internet 180 may be directly connected without going through the local network 170, or may be configured such that the ENUM DNS 190 is constructed and connected in the local network 170.

  The FAX unit 120 includes a communication image processing unit 121 that converts image resolution, size, coding rule, and the like when image information is transmitted and received, and an ITU-T recommendation T.264. 30 includes a T30 control unit 122 that performs protocol control defined by 30, a modem 123 that performs modulation / demodulation of analog and digital signals, and an NCU (= Network Control Unit) 125 that controls connection to the public network telephone line 200. .

  The e-mail iFAX unit 150 includes a communication image processing unit 151 that performs conversion processing of image resolution, size, coding rule, and the like when image information is transmitted and received, and an ITU-T recommendation T.264. 37 includes a T37 control unit 152 that performs Internet fax protocol control defined by 37, and an SMTP control unit 153 that performs SMTP (= Simple Mail Transfer Protocol) control for performing transmission / reception control of an existing electronic mail.

  The e-mail iFAX unit 150, in addition to a service (= Scan to Email) that transmits scanned image information in a specified file format to a specified destination, ITU-T recommendation T.264. It also supports the transmission and reception of image information of 37 iFAX communication services, and is equipped with a communication image processing unit 151, so that a real-time iFAX communication method (established by the IETF) that directly communicates with a communication partner terminal device without going through a mail server. (Direct SMTP method) is also supported.

  The ENUM DNS processing unit 130 makes an inquiry to the ENUM DNS 190, receives NAPTR-RR information returned from the ENUM DNS 190 in response to the inquiry, and performs various processes described later based on the received information.

  Here, for convenience of explaining the control operation of the main part of the information communication apparatus 100 of the present invention, the NAPTR-RR information registered in the ENUM DNS 190 and the response information from the ENUM DNS 190 to the inquiry information from the information communication apparatus 100 The flow of this will be briefly described with reference to FIGS.

  FIG. 3 is a diagram illustrating an example of the NAPTR-RR information 300 registered in the ENUM DNS 190.

  As shown in FIG. 3, the NAPTR-RR information 300 registered in the ENUM DNS 190 is configured such that a plurality of resource records can be defined for one domain name.

  Specifically, the format of the NAPTR-RR information 300 includes a “$ ORIGIN” line and an “IN NAPTR” line. The “$ ORIGIN” line includes a domain name, and the “IN NAPTR” line includes “ It is configured to be able to record and register information such as the protocol service of the communication means associated with the domain name in the “$ ORIGIN” line, the address, and the priority order of the communication means.

  For example, the NAPTR-RR information 310 corresponding to the domain name “8.7.6.5.5.4.3.2.1.3.1.8.e164.arpa” has a “$ ORIGIN” line indicating the domain name. A plurality of “IN NAPTR” lines 313 indicating a resource record for one domain name 312 of “8.7.7.6.5.4.3.2.1.3.1.8.e164.arpa” of 311 314, 315 are recorded and registered.

  The format of the “IN NAPTR” line is defined by a format such as “IN NAPTR order preference flags service registration replacement”. The “order” field and the “preference” field indicate priority information, and the value of the “order” field indicates In the case where there are a plurality of values having the same priority in the descending order and the same value in the “order” field, this indicates that the priority is in descending order of the value in the “preference” field.

  The character string defined in the “service” field indicates a protocol service, and the “regexp” and “replacement” fields indicate address information.

  “IN NAPTR” line 313 “IN NAPTR 100 10“ U ”” E2U + tel ”“! ^. * $! tel: +81312345678! “.” Indicates that the “order” field is “100”, the “preference” field is “10”, the “flags” field is ““ U ””, the “service” field is “E2U + tel”, and the “regexp” field is “ ""! ^. * $! tel: +81312345678! "" Indicates that the telephone number when the facsimile communication protocol is available via the public network telephone line and the facsimile communication is performed is "8131345678".

  Further, an “IN NAPTR” line 3314 can use the Internet fax protocol indicated by “E2U + ifax: mailto”, and the address when performing Internet fax communication is “aaa@faxmp.iwa.fixerox.co.jp”. It shows that there is.

  The “IN NAPTR” line 315 indicates that the e-mail communication protocol indicated by ““ E2U + mailto ”” can be used, and the address for e-mail communication is “info-mail@mail.com”. Is shown.

  In this way, a communication means set in a plurality of “IN NAPTR” lines 313, 314, 315,.

  In response to the inquiry about the NAPTR-RR information corresponding to the domain name “8.7.6.5.5.4.3.2.1.3.1.8e164.arpa” from the information communication apparatus 100, the DNS 190 for ENUM Refers to the NAPTR-RR information 300 registered in the DNS 190 for ENUM and corresponds to the domain name “8.7.6.5.5.4.3.2.1.3.1.8e164.arpa” The domain name “8.7.6.5.5.4.3.2.1.3.1.8.e164.arpa” 312 in the “$ ORIGIN” line 311 of the NAPTR-RR information 310 to be searched is searched for. The information of a plurality of “IN NAPTR” lines 313, 314, and 315 associated with “8.7.6.5.5.4.3.2.1.3.1.8e164.arpa” 312 is transferred to NAPTR−. As RR information To reply to the multicast communication apparatus 100.

  When the domain name transmitted from the information communication apparatus 100 is not registered in the ENUM DNS 190, information indicating that the domain name is not registered in the ENUM DNS 190 is returned to the information communication apparatus 100.

  The flow of inquiry information and response information between the information communication apparatus 100 for the inquiry processing for the ENUM DNS 190 and the ENUM DNS 190 is shown in FIG.

  FIG. 4 is a diagram showing a flow of inquiry information and response information between the information communication apparatus 100 and the ENUM DNS 190. FIG. 4A shows a case where the inquiry domain name is registered in the ENUM DNS 190. FIG. 4B is a diagram showing an example, and FIG. 4B is a diagram showing an example when the inquiry domain name is not registered in the DNS 190 for ENUM.

  As shown in FIG. 4A, the information communication apparatus 100 makes an ENUM domain name inquiry corresponding to the telephone number of its own apparatus (information communication apparatus 100) to the ENUM DNS 190, for example. NAPTR-RR information 310 is returned from DNS 190 to information communication apparatus 100.

  Specifically, the ENUM DNS processing unit 130 of the information communication apparatus 100 converts the telephone number of the own apparatus (information communication apparatus 100) into an ENUM format address based on a command instruction of the system control unit 101, and then converts the converted ENUM. An inquiry is made to the ENUM DNS 190 based on the format address information.

  Specifically, for example, in Japan, if the telephone number is “03-123-45678”, the method of converting the telephone number into an ENUM address is based on the telephone number starting from the Japanese area code. "0" of E. is deleted. In accordance with the 164 number rule, the country code “81” of Japan is added, and a dot “.” Is added between numbers excluding symbols other than numbers, “8.1.1.3.2.3.4.5. .6.7.8 ”, and in reverse order of the numbers, the character string“ .e164.arpa ”is added to the end and“ 8.7.6.5.5.4.3.2.3.1.1 ”is added. .8.e164.arpa "is converted into a domain name.

  The ENUM format address (hereinafter referred to as “domain name”) obtained by such conversion is connected to the Internet 180 via the TCP / UDP / IP control unit 108, the network interface 109, and the local network 170. The ENUM DNS 190 is transmitted, the NAPTR-RR information corresponding to the domain name is referred to, and the reference result is notified from the ENUM DNS 190 to the information communication apparatus 100.

  The NAPTR-RR information 310 associated with the domain name “8.7.6.5.5.4.3.2.1.3.1.8e164.arpa” returned from the ENUM DNS 190 is the Internet 180 The data is input to the network interface 109 of the information communication apparatus 100 via the local network 170, and further input to the ENUM DNS processing unit 150 via the TCP / UDP / IP control unit 107.

  The ENUM DNS processing unit 150 performs the protocol information, the telephone number and the address based on the information in the “IN-NAPTR” lines 313, 314, and 315 recorded in the NAPTR-RR information 310 returned from the ENUM DNS 190. , Recognizes information such as the priority order of the communication means, takes out the communication means and the address of the destination when using the communication means based on a command instruction of the system control unit 101, and further determines the priority order of the communication means. If registered, the priority is taken out.

  4B, the NAPTR-RR associated with the domain name is not registered in the ENUM DNS 190 in response to the NAPTR-RR information inquiry based on the domain name from the information communication apparatus 100. In this case, information 320 indicating that “inquiry domain name is not registered in ENUM” is returned from ENUM DNS 190 to information communication apparatus 100.

  When the information communication apparatus 100 according to the present invention detects a state in which data reception is not possible during data reception in facsimile communication, the NAPTR-RR related to the own apparatus (information communication apparatus 100) registered in the ENUM DNS 190. It is configured to perform stable facsimile communication by changing the information to the content to be communicated by preferentially using other existing communication means provided in the own apparatus.

  FIG. 5 shows the processing operation of the main part of the present invention when the information communication apparatus 100 detects a state where data cannot be received for some reason during data reception or detects that the data communication apparatus 100 has recovered from a state where data cannot be received. It is a flowchart which shows.

  As shown in FIG. 5, the memory for storing data received during data reception by the information communication apparatus 100 is full, or the remaining amount of memory is less than a preset threshold value or information communication. When it is detected that data cannot be received due to a failure of the device 100 or a failure of the printer unit 104 that forms an image of the information communication device 100 (YES in steps S501 and S502), the own device (information communication device) 100) NAPTR-RR is acquired from the ENUM DNS 190, and update processing A is performed for changing and registering information such as the communication means and the priority and address of the communication means recorded in the NAPTR-RR (step S503). ), Print out the received data stored in the memory (step S504).

  Details of the update process A will be described later.

  For example, when the information communication apparatus 100 cannot receive data due to a state in which the memory that temporarily stores the received data uses the storage capacity of the memory with the received data (hereinafter referred to as “memory full state”). When the received data stored in the memory is printed out, an empty area is created in the memory, and data can be received again.

  When the received data stored in the memory is printed out, data reception is possible, and when the information communication apparatus 100 detects that the data can be received (YES in step S505), the information communication apparatus 100 updates the above-described update. Before performing the process A, an update process B is performed for changing and registering the content of the NAPTR-RR information of the information communication apparatus 100 registered in the ENUM DNS 190 (step S506).

  Details of the update process B will be described later.

  The information communication apparatus 100 continuously receives the data after performing the update process B (NO in step S507), repeats the processes in steps S501 to S507, and ends the process when the data reception is completed (in step S507). YES).

  Thus, in the information communication apparatus 100 according to the present invention, the communication partner that communicates with the information communication apparatus 100 by changing the communication means that cannot communicate during data reception to another communication means is the information communication apparatus. 100 can communicate with 100 stably.

  6 and 7 are diagrams illustrating an example of the details of the update process A and the update process B described above, FIG. 6 is a flowchart illustrating the process of the update process A, and FIG. 7 is a flowchart of the process of the update process B. FIG.

  As shown in the processing operation of the main part of the present invention (see FIG. 5), when the information communication apparatus 100 detects that data reception is not possible due to the memory capacity for storing the received data during data reception, The NAPTR-RR of the apparatus (information communication apparatus 100) is acquired from the DNS 190 for ENUM, and update processing A for changing and registering the contents of the NAPTR-RR is performed.

  For example, as shown in FIG. 6, the update process A inquires the ENUM DNS 190 whether the NAPTR-RR of the own device (information communication device 100) is registered in the ENUM DNS 190. The NAPTR-RR of the device is acquired from the ENUM DNS 19 (step S601).

  If the NAPTR-RR of the own apparatus can be acquired from the ENUM DNS 19 in step 601 (YES in step S602), the priority of the communication means of facsimile communication recorded in the acquired NAPTR-RR information is set to other communication means. The priority information of the NAPTR-RR information is changed so as to be lower than the priority order of (step S603).

  Specifically, the NAPTR-RR information of the information communication apparatus 100 acquired from the ENUM DNS 19 is, for example, as shown in FIG. The priority order of “FAX communication” is “10”, the priority order of Internet facsimile communication (hereinafter referred to as “iFAX communication”) is “20”, and the priority order of electronic mail communication (hereinafter referred to as “Email communication”). 8 is registered by rewriting the priority of FAX communication as shown in FIG. 8B to “40”, and the changed NAPTR-RR is registered in the DNS 190 for ENUM.

  The priority indicates that the smaller the value registered in the “preference” field of the NAPTR-RR, the higher the priority.

  Further, as shown in the processing operation of the main part of the present invention described above (see FIG. 5), the received data stored in the memory is printed out, so that there is a free space in the memory and data can be received again. When detected, the information communication apparatus 100 changes the contents of the NAPTR-RR information of the information communication apparatus 100 registered in the ENUM DNS 190 before performing the above-described update process A (see FIG. 6) and registers the information. Update process B is performed.

For example, as illustrated in FIG. 7, the update process B acquires the NAPTR-RR of the own apparatus (information communication apparatus 100) by inquiring the DNS 190 for ENUM (YES in step S701 and step S702), and acquires the NAPTR-RR. The content of the information (see FIG. 8C) is changed to the content of the NAPTR-RR as shown in FIG. 8D registered in the ENUM DNS 190 before performing the update process A (see FIG. 6). Change and register in ENUM DNS 190 (step S703)
In the update process A for changing the priority order of FAX communication shown in FIG. 6, the NAPTR-RR information of the information communication apparatus 100 acquired from the ENUM DNS 19 is, for example, as shown in FIG. The priority is “order” field is “90”, “preference” field is “10”, iFAX communication priority is “order” field is “101”, “preference” field is “10”, and Email communication is When the priority is registered with the “order” field being “102” and the “preference” field being “10”, the “order” field “90” of the priority order of FAX communication as shown in FIG. ”May be changed to NAPTR-RR rewritten to“ 103 ”. The update process B for changing the priority order of the FAX communication shown in FIG. 7 is performed by using the update process A (see FIG. 9C) for the contents of the NAPTR-RR information acquired by inquiring the DNS 190 for ENUM (see FIG. 9C). Before performing (see FIG. 6), the contents of the NAPTR-RR shown in FIG. 9 (d) registered in the ENUM DNS 190 are changed.

  Note that the priority indicates that the lower the value registered in the “order” field of the NAPTR-RR, the higher the priority.

  10 and 11 are diagrams showing an example of the details of the update process A and the update process B other than the update process A and the update process B shown in FIGS. 6 and 7, and FIG. FIG. 11 is a diagram showing a processing flow of update processing A for deleting FAX communication information of RR, and FIG. 11 is a diagram showing a processing flow of update processing B for registering FAX communication information deleted from NAPTR-RR.

  As shown in FIG. 10, when the information communication apparatus 100 detects that data reception is not possible due to the memory capacity for storing received data during data reception, the information communication apparatus 100 uses its own NAPTR-RR for ENUM. Update processing A that is acquired from the DNS 190 and rewrites the contents of the NAPTR-RR is performed.

  This update process A inquires of the ENUM DNS 190 whether the NAPTR-RR of the own device (information communication device 100) is registered in the ENUM DNS 190, and if it is registered, the NAPTR-RR of the own device is enumerated. It is obtained from the DNS 19 for use (step S1001).

  In step 1001, when the NAPTR-RR of the own apparatus can be acquired from the DNS 19 for ENUM (YES in step S1002), the information on the communication means of FAX communication recorded in the acquired NAPTR-RR information is deleted from the NAPTR-RR. Is performed (step S1003).

  Specifically, the NAPTR-RR information of the information communication apparatus 100 acquired from the ENUM DNS 19 is, for example, as shown in FIG. 12A, FAX communication (line with an underline in the figure), iFAX communication as shown in FIG. When Email communication is registered, a process for deleting information on communication means of FAX communication as shown in FIG. 12B is performed from NAPTR-RR (NAPTR in a line surrounded by a broken line in the figure). -Delete RR information).

  Further, when the reception data stored in the memory is printed out, and it is detected that the memory has a free space and data can be received again, the information communication apparatus 100 updates the update process A (see FIG. 10). The update process B for changing to the content of the NAPTR-RR information of the information communication apparatus 100 registered in the ENUM DNS 190 before registration is performed.

  For example, as shown in FIG. 11, the update process B acquires the NAPTR-RR information of its own device (information communication device 100) by inquiring the DNS 190 for ENUM (YES in step S1101 and step S1102), and the acquired NAPTR- Before performing the update process A (see FIG. 10), the contents of the RR information (refer to FIG. 12C, the NAPTR-RR information in which the line surrounded by the broken line in the figure is deleted by the update process A) The contents of the NAPTR-RR registered in the ENUM DNS 190 are changed (step S1102).

  Specifically, the information on the communication means related to the FAX communication deleted from the NAPTR-RR in the update process A (see FIG. 10) is shown in the NAPTR- as shown in the underlined line in FIG. Change to RR contents and register.

  FIGS. 13 and 14 are diagrams showing an example of the details of the update process A and update process B other than the update process A and update process B shown in FIGS. 10 and 11, and FIG. FIG. 14 is a diagram showing a processing flow of update processing A in which FAX communication information of RR communication means is changed to proxy destination information so that other information communication devices receive the FAX communication information on behalf of the information communication device 100. FIG. It is a figure which shows the flow of the process of the update process B which rewrites the content before changing the FAX communication information of NAPTR-RR in which the address information of communication was changed into proxy destination information.

  As shown in FIG. 13, when the information communication apparatus 100 detects that data reception is not possible due to the memory capacity for storing received data during data reception, the information communication apparatus 100 uses its own NAPTR-RR for ENUM. Update processing A that is acquired from the DNS 190 and rewrites the contents of the NAPTR-RR is performed.

  This update process A inquires of the ENUM DNS 190 whether the NAPTR-RR of the own device (information communication device 100) is registered in the ENUM DNS 190, and if it is registered, the NAPTR-RR of the own device is enumerated. It is obtained from the DNS 19 for use (step S1301).

In step 1301, if the NAPTR-RR of the own device can be acquired from the DNS 19 for ENUM (YES in step S1302), information on the communication means of FAX communication recorded in the acquired NAPTR-RR information is transmitted to the information communication device 100. Performs a process of changing to the proxy destination information so that the data is received on behalf of another information communication device (step S1303).
.

  Specifically, the NAPTR-RR information of the information communication apparatus 100 acquired from the ENUM DNS 19 is registered with the telephone number which is the address information of FAX communication as “481234567” as shown in FIG. 15A, for example. 15B, the information communication apparatus 100 receives the FAX communication dress information as the telephone number of the proxy destination so that the information communication apparatus 100 receives the data on behalf of the other information communication apparatus "487654321". To change the information to "".

  When the reception data stored in the memory is printed out, and when it is detected that the memory has a free space and data can be received again, the information communication apparatus 100 updates the update process A (see FIG. 13). The update process B for changing the content of the NAPTR-RR information of the information communication apparatus 100 registered in the ENUM DNS 190 is performed.

  For example, as illustrated in FIG. 14, the update process B acquires the NAPTR-RR of its own apparatus (information communication apparatus 100) by inquiring the DNS 190 for ENUM (YES in steps S1401 and S1402), and the acquired NAPTR-RR. The content of the information (see FIG. 15C) is changed to the content of the NAPTR-RR registered in the ENUM DNS 190 before performing the update process A (see FIG. 13) and registered (step S1403). .

  Specifically, in the update process A (see FIG. 13), the information communication apparatus 100 changes the address information “487654321” of the FAX communication that has been changed so that data is received on behalf of another information communication apparatus. It is rewritten to “481234567” and changed to the content of NAPTR-RR as shown in FIG.

  The present invention can be used in an information communication apparatus having a plurality of communication means such as electronic mail, Internet fax, and fax.

  According to the present invention, when communication becomes impossible for some reason during communication, NAPTR-RR information is used so that other existing communication means included in the present apparatus can be used in addition to the communication means that has made communication impossible. Therefore, it is possible to efficiently use other existing communication means included in the present apparatus.

  In addition, when communication becomes impossible for some reason during communication, the NAPTR-RR information is changed so that communication can be performed with a device that performs communication on behalf of this device. Equipment can be used effectively

Schematic showing an example of the connection state of the information communication apparatus 100 according to the present invention The block diagram which shows the structural example of the information communication apparatus 100 concerning this invention The figure which shows an example of the NAPTR-RR information 300 registered into DNS 190 for ENUM The figure which shows the flow of the information between the information communication apparatus 100 and DNS 190 for ENUM The flowchart which shows the processing operation of the principal part of this invention The figure which shows the flowchart of the process of the update process A (priority change of a communication means) The figure which shows the flowchart of the process of the update process B (priority change of a communication means) The figure which shows an example of NAPTR-RR in the update process A (priority change by a "preference" field) The figure which shows an example of NAPTR-RR in the update process A (priority change by an order field) The figure which shows the flowchart of the process of the update process A (deletion of a communication means) The figure which shows the flowchart of the process of the update process B (re-registration of the deleted communication means) The figure which shows an example of NAPTR-RR in update process A (deletion of a communication means) and update process B (re-registration of the deleted communication means) The figure which shows the flowchart of the processing of update processing A (changes the communication destination to the proxy communication destination) The figure which shows the flowchart of the process of the update process B (changes a communication destination to this communication destination) The figure which shows an example of NAPTR-RR in the update process A (change a communication destination to a proxy communication destination) and the update process B (change a communication destination to this communication destination)

Explanation of symbols

10 Telephone 30, 40 Computer 50 Internet FAX (= iFAX) Device 60 ENUM System 100 Information Communication Device
DESCRIPTION OF SYMBOLS 101 System control part 102 Image storage part 103 Scanner part 104 Printer part 105 Operation / display part
106 RAM
107 Bus 108 TCP / UDP / IP Control Unit 109 Network Interface 120 Fax Unit 121, 151 Communication Image Processing Unit 122 T30 Control Unit 123 Modem 124 NCU
130 DNS processing unit for ENUM 140 Transport protocol control unit 150 E-mail iFAX unit 152 T37 control unit 153 SMTP control unit
170 On-premise network 180 Internet 190 DNS for ENUM
200 Public network telephone line (PSTN)
400 NAPTR-RR information 410 NAPTR-RR
411 ORIGIN line 412 Domain name 413, 414, 415 NAPTR-RR line

Claims (14)

In an information communication apparatus for receiving information using a communication means selected by a partner terminal apparatus based on a NAPTR resource record registered in an ENUM DNS server,
Detecting means for detecting an unreceivable state of a communication means corresponding to a specific NAPTR resource record among NAPTR resource records registered in the DNS server;
Based on the detection output of the detection means, the DNS server of the ENUM is accessed, and the NAPTR resource record is changed so that the NAPTR resource record corresponding to the communication means detected to be unreceivable is not selected by the counterpart terminal device. NAPTR resource record changing means for performing information communication. The NAPTR resource record changing means includes:
2. The priority of a NAPTR resource record corresponding to a communication means that is detected as being unreceivable by the detection means is changed to be lower than a priority of a NAPTR resource record corresponding to another communication means. Information communication equipment. The NAPTR resource record changing means includes:
The information communication apparatus according to claim 1, wherein a change is made to delete a NAPTR resource record corresponding to the communication means detected as being incapable of reception by the detection means. When the communication means detected as unreceivable by the detecting means returns to the receivable state, the DNS server of the ENUM is accessed and the NAPTR resource record changed by the NAPTR resource record changing means is returned to the original state. The information communication apparatus according to claim 1, further comprising: a NAPTR resource record restoration unit that restores the information to the network. The communication means detected by the detection means as being incapable of receiving is:
A facsimile communication means,
The unreceivable state is
The information communication according to any one of claims 1 to 4, wherein the remaining storage capacity of the storage means for storing the document received by the facsimile communication means is less than the capacity required for storing the document. apparatus. The communication means detected by the detection means as being incapable of receiving is:
A facsimile communication means,
The unreceivable state is
The information communication apparatus according to claim 1, wherein the reception function of the facsimile communication unit is in a state of failure. The communication means detected by the detection means as being incapable of receiving is:
A facsimile communication means,
The unreceivable state is
The information communication apparatus according to claim 1, wherein a fault has occurred in a print function for printing a document received by the facsimile communication unit. In a control method of an information communication apparatus for receiving information using a communication means selected by a partner terminal apparatus based on a NAPTR resource record registered in an ENUM DNS server,
The detection means detects the state of the communication means corresponding to a specific NAPTR resource record among the NAPTR resource records registered in the DNS server,
Based on the detection output of the detection means, the DNS server of the ENUM is accessed, and the NAPTR resource record is changed so that the NAPTR resource record corresponding to the communication means detected to be unreceivable is not selected by the counterpart terminal device. A control method for an information communication apparatus, characterized in that it is performed by a NAPTR resource record changing means. The NAPTR resource record changing means includes:
9. The priority of a NAPTR resource record corresponding to a communication means that has been detected as being unreceivable by the detection means is changed to be lower than a priority of a NAPTR resource record corresponding to another communication means. Control method for information communication apparatus. The NAPTR resource record changing means includes:
The control method for an information communication apparatus according to claim 8, wherein a change is made to delete a NAPTR resource record corresponding to a communication means detected as being incapable of reception by the detection means. When the communication means detected as unreceivable by the detecting means returns to the receivable state, the NUMTR resource record changed by the NAPTR resource record changing means is accessed by accessing the DNS server of the ENUM. The information communication apparatus control method according to claim 8, wherein the original state is restored by a restoration unit. The communication means detected by the detection means as being incapable of receiving is:
A facsimile communication means,
The unreceivable state is
12. The information communication according to claim 8, wherein a remaining storage capacity of a storage means for storing a document received by the facsimile communication means is less than a capacity necessary for storing the document. Control method of the device. The communication means detected by the detection means as being incapable of receiving is:
A facsimile communication means,
The unreceivable state is
The control method for an information communication apparatus according to any one of claims 8 to 11, wherein the reception function of the facsimile communication means is in a broken state. The communication means detected by the detection means as being incapable of receiving is:
A facsimile communication means,
The unreceivable state is
12. The information communication apparatus control method according to claim 8, wherein a fault has occurred in a print function for printing a document received by the facsimile communication means.

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