JP2008028461A - In-house relay apparatus and in-house relay system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an in-house relay apparatus and an in-house relay system enabling a user to control call control connection and to change setting of the call control connection at a call control non-corresponding terminal by interlocking the call control non-corresponding terminal with the in-house relay apparatus in relaying the call control non-corresponding terminal with a call control-compatible network. <P>SOLUTION: The in-house relay apparatus connects a call control network to which a call control terminal is connected, to a network to which the call control non-corresponding terminal having a function of generating a call control function operation message and transmitting the message is connected. The apparatus is provided with a packet transmission/reception section 101 performing communication with the call control non-corresponding terminal and communication with the call control network; a router 104 for controlling a transfer path of packets; a call control function section 102 for executing call control connection with a call control-compatible terminal connected to the call control network; and a call control operation I/F section 103 for acquiring the call control function operation message of the call control non-corresponding terminal from a transfer path control means, and reflecting the message on the call control connection. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is arranged between a call control (signaling) network based on an IP (Internet Protocol) network, a call control compatible terminal connected thereto, and a call control non-compliant terminal connected to an existing IP network. The present invention relates to an in-home relay (gateway) technology and apparatus.

  In a next generation network (NGN) that is currently being actively discussed in standardization organizations such as ITU-T (International Telecommunication Union Telecommunication Standardization Sector), call control procedures are used to connect terminals through the network. is necessary. In the future, SIP (Session Initiation Protocol) is expected to be widely applied as the call control protocol. SIP is studied by IETF (Internet Engineering Task Force), and the specification is confirmed as RFC3261. The NGN in ITU-T is considered to basically use SIP. In a network environment such as NGN, it is required that the terminals connected to each other or the applications operating there support the call control function, particularly SIP, but the response will proceed rapidly until NGN begins to spread. It is not considered.

  For example, HTTP (Hyper Text Transport Protocol), which is widely used for WWW (World Wide Web), does not require call control and can browse home pages on the Internet from a terminal's Web browser without any problems. It is. Under such circumstances, even if the user is requested to switch to a call control compatible terminal for the convenience of the wide area network, it is expected that the user will not be easily convinced.

  For this reason, when there is a request that the user wants to use a service that needs to be connected via NGN, or there is a request that the service company that provides NGN wants to connect the user terminal to NGN, the user terminal, server, or application However, since it does not support call control, it can be easily predicted that a situation in which connection cannot be made will occur. Therefore, Patent Document 1 attempts to solve this problem by applying the following method.

  As shown in FIG. 8, the network of Patent Document 1 includes a home network 830 to which a call control non-compliant terminal (SIP non-compliant terminal) 810 is connected, and a call control compatible terminal (SIP compatible terminal) 840 to which the network is connected. The network includes a generation network (NGN) 850 and a gateway (GW) device 820 that relays the home network 830 and the next generation network 850. The call control protocol is based on SIP, and the next generation network requires a call control procedure based on SIP. The next generation network 850 has an environment (especially a SIP server) necessary for call control (SIP), and the home network 830 side is only a GW device 820 and a call control non-compatible terminal (SIP non-compatible terminal) 810. In such a network configuration, in order to connect the call control non-compliant terminal (SIP non-compliant terminal) 810 in the home network 830 to the next generation network 850, the GW apparatus 820 is provided with a SIP-UA (SIP User Agent) function, SIP manager function for controlling the activation of SIP-UA, etc., a function for installing several bundles and executing one of them according to an external request, a function for assigning and rewriting header information of media data, and a bundle operation means Equivalent functions are to be installed.

  Next, the network connection procedure of Patent Document 1 is shown. First, when a “bundle execution request with media information” is issued from the call control non-compliant terminal 810, the GW apparatus 820 that has received the request executes an appropriate bundle, and the bundle cooperates with the SIP manager to perform SIP- The UA is started up, information such as the SIP address of the connection destination is acquired from the call control non-compliant terminal, and a connection establishment procedure by SIP is performed with the call control compatible terminal. The GW device 820 acquires information necessary for transmission / reception of an IP address and data from a call control non-compliant terminal, completes the SIP connection establishment procedure, and establishes a session between the call control compatible terminals. The media is received from, and necessary information is converted and then transferred to a terminal that does not support call control.

  Further, when a terminal that does not support call control transmits media, the medium is transmitted to the GW apparatus 820, and after the necessary information is converted by the GW apparatus 820, transfer is performed to the call control compatible terminal 840. In this way, media communication with the next generation network 850 is possible even with the call control non-compliant terminal 810, and further transmission / reception is performed via the GW device 820, so that the communication information inside the home network 830 is concealed and the security level is improved Then he sang.

JP 2005-252477 A

  However, the conventional technique has the following problems.

  (1) A bundle is required for each application. Not only a so-called bundle that operates on the GW apparatus 820 but also a function for exchanging connection information with an existing application or acquiring information from the application (generally considered as software) is required for a terminal. However, details of the function on the terminal side are not shown in Patent Document 1.

  (2) Despite the open platform, the user (terminal user) cannot freely provide the bundle. That is, only an application that can be processed by a bundle that is previously installed in the GW device 820 can be supported. Although it is possible for a user to create a bundle, in that case, it is not possible to guarantee what program will operate in the GW device unless the service company that provides the next generation network 850 performs authentication. , Security is not kept. However, in the OSGi disclosed in Patent Document 1, sufficient security is maintained for the execution of the bundle closed in the OSG frame.

  (3) The transmission destination address of the media is also converted by the GW device, and the GW device 820 is loaded accordingly.

  (4) Since the bundle installed in the GW apparatus 820 and the software that transmits the bundle execution request installed in the call control non-compliant terminal 810 need to be able to cooperate closely, generally the same vendor or service company Will be developed and provided. If the vendor is the same, various linkages related to communication connection can be realized in addition to the bundle request, but this is not shown in this document.

  The present invention has been made in view of the above, and when relaying between a call control non-compliant terminal and a call control network, the call control non-compliant terminal and the home relay device cooperate with each other, and the call control non-compliant terminal An object of the present invention is to obtain a home relay device and a home relay system capable of controlling the call control connection and changing the settings of the call control connection.

  In order to solve the above-described problems and achieve the object, the present invention provides a call control network to which a call control terminal is connected and a call control non-compliant terminal having a function of generating and transmitting a call control function operation message. A home relay device that connects a connected network, communicates with a terminal that does not support call control, communicates with a call control network, and controls a packet transfer path, and supports call control connected to the call control network Call control means for making a call control connection with a terminal, and call control operation interface means for acquiring the call control function operation message from a terminal that does not support call control and reflecting it in the call control connection.

  According to the present invention, the call control function operation message of the packet transmitted from the call control non-compliant terminal is acquired, and the call control function operation message is reflected in the call control connection. It is possible to relay to a call control network, and it is possible to operate a call control procedure from a terminal that does not support call control and to change its settings.

  Embodiments of a home relay system according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 shows a network configuration diagram of Embodiment 1 of a home relay system according to the present invention. This network includes a home network 10 to which a call control non-compliant terminal 200 is connected, a next generation network (NGN) 11 to which a call control compatible terminal 300 is connected, and a gateway (GW) device (GW) that relays these networks ( Home relay device 100). The call control protocol is based on SIP, and connection with the next generation network 11 requires a call control procedure by SIP.

  FIG. 2 shows a functional configuration of the GW apparatus 100. Reference numeral 100 denotes a GW apparatus main body, and reference numeral 101 denotes a packet transmission / reception unit that transmits / receives packets to / from the home network 10 and the next-generation network 11. Reference numeral 102 denotes a call control function unit (SIP-UA in the present embodiment) which is one of the basic functions of the present invention. Reference numeral 103 denotes an exchange of messages with the call control non-compliant terminal 200 and control related to call control connection. It is a call control operation function I / F unit for exchanging requests and information. Reference numeral 104 denotes a router function unit (transfer path control unit) having a router function inherent in the GW apparatus 100, that is, a function of controlling a packet transfer path. The call control operation function I / F unit 103 can activate and operate a plurality of call control functions 102 in parallel in order to cope with simultaneous access from a plurality of call control non-compliant terminals 200. . Although FIG. 2 shows an example in which a plurality of call control functions 102 exist, one may be used.

  Reference numeral 111 denotes a first control line through which a control message (packet) between the GW apparatus 100 and the call control incompatible terminal 200 of the home network 10 passes, and 112 denotes the GW apparatus 100 and the next generation network 11. This is a second control line through which a control message to and from the call control compatible terminal 300 passes. Application communication packets from outside the GW apparatus 100 (the home network 10 or the next generation network 11) are transmitted from the router function unit 104 via the packet transmission / reception unit 101 to the call control operation function I / F unit 103 or the call control function 102. And is transferred from the router function unit 104 to the outside via the packet transmission / reception unit 101.

  FIG. 3 shows a functional configuration of the call control non-compliant terminal 200 in the home network 10. 200 is a terminal body that does not support call control, 201 is a packet transmission / reception function unit that performs packet transmission / reception, and 202 performs exchange of call control with a GW apparatus, such as transmission of a control request and information related to a call control connection. A call control operation function unit 203 is various applications that run on the call control non-compliant terminal 200. Reference numeral 212 denotes a control line through which a control message passes between the application 203 and the connection destination (the call control compatible terminal 300 in the next generation set work 11 in this embodiment). A probe 221 acquires a message passing through the control line 212 and monitors the connection establishment status and the status after the connection is established. Based on the information acquired by the probe 221, the call control operation function unit 202 generates a call control function operation message according to the situation and transmits the call control function operation message to the call control operation function I / F unit 103 of the GW apparatus 100. . The messages exchanged here are created according to a defined protocol that is known at the time when the GW apparatus 100 is designed.

  Reference numeral 213 denotes a data communication line through which data that does not need to be monitored other than connection information transmitted / received via 212 out of data transmitted / received by communication with the call control terminal 300 passes. For example, in the case of a video streaming application based on RTSP (Real Time Streaming Protocol: IETF RFC2326), the control line 212 is used for RTSP control connection, and the communication line 213 is used for video and audio streaming sessions.

  Next, a connection procedure operation according to the first embodiment of the present invention will be described with reference to FIG.

  First, the application 203 in the call control non-compliant terminal 200 issues a TCP connection establishment request (TCP-SYN) based on the existing TCP / IP in order to establish a control session with the call control compatible terminal 300. It transmits to the control line 212 (step S10). The call control operation function unit 202 in the call control non-compliant terminal 200 takes out a connection request transmitted from the control line 212 by the probe 212, and performs a call control operation of the GW device 100 via the packet transmission / reception unit 201 via the packet transmission / reception unit 201. While transmitting to the function I / F unit 103 (step S11), the header information (transmission / reception IP address, transmission / reception TCP port number) of the TCP-SYN packet is acquired, A call control connection establishment request message including header information is notified (step S12). The call control operation function I / F unit 103 transfers the TCP-SYN packet received from the call control non-compliant terminal 200 in Step S11 to the call control compatible terminal 300 (Step S13).

  Next, the call control operation function I / F unit 103 of the GW apparatus 100 starts up the call control function 102, and the call control function 102 receives the header information received by the call control operation function I / F unit 103 in step S12. A call control message (SIP message) is generated based on the acquired information and a connection is established with the call control compatible terminal 300 by a call control (signaling) procedure (step S14). When the connection by the signaling procedure is established, the call control operation function I / F unit 103 transmits a call control connection establishment completion message to the call control operation function 202 of the call control non-compliant terminal 200 (step S15).

  When receiving the TCP-SYN packet received in step S13, the call control compatible terminal 300 transmits a TCP connection establishment response (TCP-SYNACK) to the GW apparatus 100 (step S16). The call control operation function I / F unit 103 of the GW apparatus 100 receives this TCP-SYNACK packet and transfers it to the call control operation function 202 of the call control non-compliant terminal 200 (step S17). When the call control operation function 202 receives this TCP-SYNACK, if the call control connection establishment completion message in step S15 is received, the call control operation function 202 transmits TCP-SYNACK to the application 203 of the terminal 200 that does not support call control (step S18). If the call control connection establishment completion message has not been received, the TCP-SYNACK is held until the call control connection establishment completion message is received, and it is not transmitted and waits. When the call control connection establishment completion message has not been received, the TCP-SYNACK may be discarded without being held, and a retransmission from the call control compatible terminal 300 may be waited. Thus, when TCP-SYNCACK is transmitted to the application 203 of the call control non-compliant terminal 200, the connection of the application 203 by TCP is established between the call control compatible terminal 300 and the call control non-compliant terminal 200, Transmission / reception of data by TCP is started (step S19).

  The disconnection is also performed according to a call control connection procedure between the GW apparatus 100 and the call control compatible terminal 300 by detecting a request from the call control operation function 202 of the call control non-compliant terminal 200 in the same procedure. In this way, connection establishment / disconnection of the call control connection with the call control compatible terminal 300 is performed using the call control function 102 of the GW apparatus 100 of the GW apparatus 100 by transmitting a request from the application 203 of the call control non-compatible terminal 200. The transmission and reception of data after connection is performed by transmitting and receiving packets between the application 203 of the call control non-compliant terminal 200 and the call control compatible terminal 300 by TCP.

  The above is an example of control connection starting from TCP-SYN. However, in general, the application 203 communicates with a server (call control compatible terminal 300 in the present embodiment) for transmission / reception of media by RTSP or the like. In order to perform control connection and transmit / receive control information, a connection request to the call control compatible terminal 300 is detected by acquiring a control connection request and control information from the control line 212 with the probe 221, and TCP-SYN in step S10. Instead, communication can be similarly performed by transmitting a connection establishment request by each protocol.

  According to the first embodiment, if the protocol is defined, there is no need to change the call control function unit 102 or the call control operation function I / F unit 103 of the GW device 100 for each application in the GW device 100. Further, even when there are connection requests from a plurality of call control non-compliant terminals 200 and a plurality of applications, it is possible to cope with each by starting up the call controller 102.

  On the other hand, the call control operation function 202 in the call control non-compliant terminal 200 depends on the application. However, this can be made relatively easily for the application by the user. This is because a prescribed protocol is used for access to the call control operation function I / F unit 103 of the GW apparatus 100. Of course, it is appropriate and desirable to provide software of the call control operation function unit 202 from a GW apparatus 100 vendor or a carrier service company in advance for many existing applications.

  In the most general form of Internet connection today, a local IP address is assigned to the home network 10. In such an environment, the GW apparatus 100 is often equipped with a NAT (Network Address Translation) function and is controlled together with the FW (Firewall) function. In addition, NAT often has a network address port translation (NAPT) function, and there is one global IP address assigned to the wide area network side, and the address translation is performed using a TCP or UDP port number. . FIG. 5 shows a functional configuration of the GW apparatus 100 including the NAPT function. Reference numeral 105 denotes a NAPT / FW function unit. Reference numeral 113 denotes a NAPT / FW control line for the call control operation function I / F unit 103 to set or delete a rule for the NAPT / FW function unit 105. A configuration in which the call control function unit 102 is connected to the NAPT / FW function unit 105 is also possible. Reference numeral 114 denotes a line for communication with the home network 10. In general, the NAPT / FW function unit 105 is not applied to the home network 10.

  An operation in an environment to which this NAPT is applied will be described below with an example.

  For example, the connection information (IP address and port number) of the call control incompatible terminal 200 is 192.168.0.3:49564, the connection information of the call control compatible terminal 300 is 192.12.4: 2956, and the GW apparatus The connection information on the 100 wide area network side is assumed to be 192.0.234.45:10956.

  When a packet is transmitted from the call control non-compliant terminal 200 to the call control compatible terminal 300 via the GW apparatus 100, the NAPT / FW function unit 105 converts the transmission source information. That is, the information 192.168.0.3:49564 of the terminal 200 that does not support call control is converted into the information 192.0.234.45:10956 of the GW apparatus 100.

  When a packet is transmitted from the call control compatible terminal 300 to the call control non-compatible terminal 200 via the GW apparatus 100, the NAPT / FW function unit 105 converts the transmission destination information. That is, the information 192.0.234.45:10956 of the GW apparatus 100 is converted into the information 192.168.0.3:49564 of the terminal 200 that does not support call control.

  The conversion using the NAPT function includes dynamic port assignment and static port assignment. When the first packet of communication is transmitted from the call control non-compliant terminal 200 to the call control compatible terminal 300 via the GW apparatus 100, there is no problem whether the allocation is dynamic or static. In the case of dynamic allocation, when a packet from the call control non-compliant terminal 200 is transmitted to the GW apparatus 100, a port number is allocated by the NAPT / FW function unit 105, and the information is stored in the NAPT / FW function unit. This is because, in subsequent communication, the information is also used for the packet addressed from the call control compatible terminal 300 to the non-call control compatible terminal 200 and converted.

  On the other hand, when the first packet of communication is transmitted to the call control non-compatible terminal 200 to the call control compatible terminal 300, the connection information of the call control non-compatible terminal 200 to be converted needs to be known in advance. The NAPT / FW function unit 105 of the GW apparatus 100 has the connection information in advance and performs the conversion. The connection information of the call control non-compliant terminal 200 can be obtained from the call control operation function 202 of the call control non-compliant terminal 200 via the call control operation function I / F.

  Therefore, when the first packet is used only in the direction from the call control incompatible terminal 200 to the call control compatible terminal 300, the NAPT function of the NAPT / FW function unit 105 may be dynamic allocation or static allocation. Are assumed to be in the direction from the call control incompatible terminal 200 to the call control compatible terminal 300 and vice versa, the NAPT function of the NAPT / FW function unit 105 is not call control in advance. It is necessary to obtain connection information of the non-compliant terminal 200 and perform conversion based on the information.

  As described above, even in an environment that requires NAPT, the GW apparatus 100 can grasp connection information of the call control non-compliant terminal 200 and perform call control with the call control terminal 300 by a call control procedure (SIP). Connection information on the terminal 300 side can also be received, and the connection information at the above three locations can be grasped by the GW device 100 prior to communication, so even if connection information is necessary in advance, sufficient Efficient NAPT / FW setting is possible.

  As is clear from the above example, the conversion process is performed only for the source connection information in the direction from the call control incompatible terminal 200 to the call control compatible terminal 300, and in the direction from the call control compatible terminal 300 to the call control incompatible terminal 200. In this case, communication is possible only by conversion of the destination connection information, which is in the range of normal NAPT processing, and in the range of general address conversion processing load required for the GW apparatus.

  As described above, according to the first embodiment, an operation of the call control operation function unit 202 of the call control non-compliant terminal 200 is received by the call control operation I / F unit 103 of the GW apparatus 100, and the call control function unit 102, the call control connection terminal 200 and the call control compatible terminal 300 are relayed between the call control incompatible terminal 200 and the call control compatible terminal 300. It is possible to connect to the control-compatible terminal 300, and it is possible to operate the call control procedure from a terminal that does not support call control and change its settings.

Embodiment 2. FIG.
FIG. 6 shows a functional configuration of the home relay apparatus according to the second embodiment of the present invention. In the second embodiment, call control operation function software for the call control operation function unit 202 is stored in the GW apparatus 100, and the stored call control operation function software for the call control operation function unit 202 is not supported by call control. A function for transmitting to the terminal 200 is added.

  Reference numeral 106 denotes a device management function unit including a Web server function for providing a setting homepage, and reference numeral 107 denotes a storage device used for referring to page information when the device management function unit 106 provides a Web server function. . Call control operation function software and homepage contents for downloading the software are stored in the storage device. By accessing the home page through a browser from the call control non-compliant terminal 200, the call control non-compliant terminal 200 can download and install the call control operation function software.

  It is assumed that the call control operation function software corresponding to various OSs is stored so that each OS (Operating System) of the call control non-compliant terminal 200 can be supported.

  In the second embodiment, the call control operation function software is developed in cooperation with software for the call control operation function I / F unit 103 installed in the GW apparatus 100. As a result, the compatibility between the software operating in the GW apparatus 100 and the call control operation function software is high, and the software is not different for each terminal 200 that does not support call control, so that management and testing can be sufficiently performed. become.

  Using the high affinity, the call control function unit 102 in the GW apparatus 100 and the call control operation function 202 of the call control incompatible terminal 200 may automatically discover each other and take necessary actions. It becomes possible. For example, when a user turns on the terminal 200 that does not support call control and logs in, all necessary communication applications are started up in a form that can be used immediately, and information on connection such as network resources is acquired to prepare for call control connection. It is also possible to perform the connection in advance and quickly connect.

  Further, since sufficient management and testing can be performed, various services can be provided while maintaining sufficient reliability and security for both the user side and the service company side.

  Furthermore, since communication with the next generation network is performed via the GW apparatus 100, the effect mentioned in Patent Document 1, that is, security can be maintained as a service company side, and a new service provided by the service company can be applied. The effect that it becomes easy arises.

  As described above, according to the second embodiment, the call control operation function software is developed in cooperation with the software for the call control operation function I / F unit 103 installed in the GW apparatus 100, and is stored in the GW apparatus 100. Since it is stored and obtained by downloading the terminal 200 that does not support call control, it is possible to quickly connect by automatic discovery or the like, and has high affinity, and sufficient reliability and security are maintained. There is an effect that can be.

Embodiment 3 FIG.
Next, a third embodiment according to the present invention will be described. The functional configuration of the home relay apparatus according to the third embodiment is the same as that of the first or second embodiment. Hereinafter, a different part from Embodiment 1 or Embodiment 2 is demonstrated. In the third embodiment, UPnP (Universal Plug & Play) is used as a platform for the call control function operation protocol.

  The call control function operation protocol used between the call control operation function I / F unit 103 of the GW apparatus 100 and the call control operation function 202 of the call control non-compliant terminal 200 includes at least the call control operation itself. Therefore, a call connection function and a call disconnection function, and a function for exchanging connection information between functions are required.

  In addition, if there is a connection setting change function (SIP UPDATE, PRACK procedure) related to call control connection, it is possible to cope with QoS and route change, and it is desirable to have a connection setting change function. .

  Although the functions related to the call control connection described above are less than those of SIP, SIP has many functions not related to the original call control, and a simplified protocol specialized for call control operation is applied to the GW. It is very effective to be implemented in the call control operation function I / F unit 103 of the device 100 and the call control operation function 202 of the terminal 200 that does not support call control.

  For example, using UPnP as a platform for a call control function operation protocol is a very effective solution. UPnP originally has a procedure in which a CP (control point) automatically discovers a partner, and the operation of the user becomes easy. When a device is applied to the GW apparatus 100 and a CP (control point) is applied to the call control non-compliant terminal 200, the call control non-compliant terminal 200 transmits information and a request to the GW apparatus 100 by action, and the GW apparatus 100 does not perform call control by an event. It is possible to transmit information and action results (events) to the corresponding terminal 200.

  FIG. 7 shows an operation procedure in the third embodiment.

  First, the application of the call control non-compliant terminal 200 transmits a TCP connection establishment request (step S20), and the call control operation function 202 receives this and transfers TCP-SYN to the call control operation function I / F unit 103. (Step S21) Furthermore, the call control operation function I / F unit 103 transfers TCP-SYN to the call control compatible terminal 300 (Step S22). When receiving the TCP connection establishment request, the call control operation function 202 transmits connection information to the call control operation function I / F unit 103 by an action (step S23), and the call control operation function I / F unit 103 performs the call control operation. A response is returned to the function 202 (step S24). Similarly, the call control operation function 202 requests connection to the call control operation function I / F unit 103 by an action (step S25), and the call control operation function I / F unit 103 returns a response to the call control operation function 202 ( Step S26).

  Next, the GW apparatus 100 performs a signaling connection procedure (step S27), and when the connection is successfully established, notifies the call control operation function 202 as an event (step S28). Is returned to the call control I / F unit 103 (step S29). It is necessary to register the definition for receiving the event notification in advance.

  When receiving the TCP-SYN packet received in step S22, the call control compatible terminal 300 transmits a TCP connection establishment response (TCP-SYNACK) to the GW apparatus 100 (step S30). The call control operation function I / F unit 103 of the GW apparatus 100 receives the TCP-SYNCACK packet and transfers it to the call control operation function 202 of the call control non-compliant terminal 200 (step S31). Furthermore, when the call control operation function 202 receives this TCP-SYNACK, if the call control connection establishment completion message in step S28 is received, the call control operation function 202 transmits the TCP-SYNACK to the application 203 of the call control non-compliant terminal 200 ( If the call control connection establishment completion message has not been received (step S32), the TCP-SYNACK is held until it is received, and it waits without being transmitted. When the call control connection establishment completion message has not been received, the TCP-SYNACK may be discarded without being held, and a retransmission from the call control compatible terminal 300 may be waited. When TCP-SYNACK is transmitted to the application 203 of the call control non-compliant terminal 200, a connection for control of the application 203 by TCP is established between the call control compatible terminal 300 and the call control non-compliant terminal 200, and the data by TCP Starts transmission / reception (step S33).

  In addition, cooperation between the GW apparatus 100 and the call control non-compliant terminal 200 regarding QoS can be performed by implementing UPnP or other protocols corresponding to QoS. As an example, a case will be described in which the call control function operation software has a function capable of displaying on the screen a pop-up for inquiring the user's service quality satisfaction level.

  After the connection between the call control incompatible terminal 200 and the call control compatible terminal 300 is established via the GW apparatus 100 and the service is started, the call control operation function 202 of the call control incompatible terminal 200 receives the call control incompatible terminal 200. In order to inquire about the degree of satisfaction with the service quality on the screen, for example, a pop-up screen is displayed, and “not satisfied” and “satisfied” are displayed. When the user of the call control non-compliant terminal 200 clicks “unsatisfied”, the call control non-compliant terminal 200 uses the setting change procedure corresponding to the UPDATE in the above-mentioned SIP to perform call control of the GW apparatus 100. A setting change request is transmitted to the operation I / F unit 103. The call control operation I / F unit 103 transmits a request to the call control function 102, and the call control function 102 establishes connection with the call control compatible terminal 300 by a signaling procedure by improving QoS at a certain rate. Thereafter, the call control operation function 202 asks the user about the quality satisfaction by pop-up again.

  Next, if the user clicks “satisfied”, for example, “Thank you. Enjoy the service slowly.” And so on, and close the pop-up for about 3 seconds. It is possible to achieve quality optimization. The method of inquiring to the user is not limited to the pop-up screen, and the content of the message is not limited to this, and any means can be used as long as it can take an I / F with the user.

  As described above, according to the third embodiment, when UPnP is used as a platform for a call control function operation protocol, user operation is facilitated and transmission / reception can be performed using a predefined protocol, so that development is easy. The effect of becoming.

  Further, it is convenient for the user to use the UPnP or other corresponding platform to inquire the user about the QoS setting of the GW apparatus 100 and the call control non-compliant terminal 200 and reflect the user request. As a result, the service company greatly contributes to customer satisfaction and leads to the expansion of users.

  As described above, the in-home relay device and the in-home relay system according to the present invention are useful for communication connecting between networks, and are particularly suitable for communication between a call control (signaling) network and an existing IP network. Yes.

It is a figure which shows the network structure of Embodiment 1 of the subscriber | terminal relay system concerning this invention. 2 is a diagram illustrating a functional configuration of a GW apparatus according to Embodiment 1. FIG. It is a figure which shows the function structure of a call control non-corresponding terminal. FIG. 6 is a diagram illustrating a connection procedure operation according to the first embodiment. It is a figure which shows the function structure of the GW apparatus containing a NAPT function. It is a figure which shows the function structure of the GW apparatus of Embodiment 2. FIG. FIG. 10 is a diagram illustrating a connection procedure operation according to the third embodiment. It is a figure which shows the network structure of the conventional home relay system.

Explanation of symbols

10,830 Residential network 11,850 Next-generation network 100,820 GW device 101 Packet transmitting / receiving unit 102 Call control function unit 103 Call control operation function I / F unit 104 Router function unit 105 NAPT / FW function unit 106 Device management unit 107 Storage Device 111 First control line 112 Second control line 113 NAPT / FW control line 200, 810 Call control incompatible terminal 201 Packet transmission / reception unit 202 Call control operation function unit 203 Application 212 Control line 213 Data communication line 221 Probe 300, 840 Call control compatible terminal

Claims (6)

Communication between a call control network to which a call control terminal is connected and a network to which a call control non-compliant terminal having a function of generating and transmitting a call control function operation message is connected, A home relay device that communicates with a control network,
Call control means for performing call control connection with a call control compatible terminal connected to the call control network;
Call control operation interface means for acquiring the call control function operation message from a terminal that does not support call control and reflecting it in a call control connection;
An in-house relay device comprising:   The home relay apparatus according to claim 1, wherein the call control function operation message from the call control non-compliant terminal is used when call control is disconnected and connected.   The in-home relay device according to claim 1 or 2, wherein the call control operation interface means corresponds to an automatic discovery protocol as a device that is automatically discovered from a terminal that does not support call control. Storage means for storing a program for performing the call control operation;
Device management means for transmitting the program to the call control non-compliant terminal in accordance with a download request from the call control non-compliant terminal;
The in-home relay device according to any one of claims 1 to 3, further comprising:   5. The in-home according to claim 1, wherein a signaling terminal function realized by processing of the call control means and the call control operation interface means is implemented as a UPnP (Universal Plug & Play) device. Relay device.   A home relay device according to any one of claims 1 to 5 and a call control non-compliant terminal connected to the home relay device and having a function of generating and transmitting a call control function operation message. In-home relay system characterized by

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