JP2007081718A - Connection interface control apparatus, connection interface control program, connection interface control method, and ip exchange - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection interface control apparatus, a connection interface control program, a connection interface control method, and an IP exchange, wherein flexibility is provided to connection forms. <P>SOLUTION: The connection interface control apparatus, for controlling the connection interface processing with one or more servers for interconnecting a prescribed caller number from each communication carrier, includes a connection information management means for managing connection destination information to each server and a connection condition with each server in interconnection with each other; a connection interface processing means for carrying out connection interface processings of a plurality of different patterns; a signal processing means for discriminating whether a received signal from an accommodated terminal includes each caller number; and a connection interface processing execution instructing means that acquires the connection condition with each server from the connection information management means and allows the connection interface processing means for executing the connection interface processing, corresponding to the acquired connection condition on the basis of the caller number of the received signal and/or the connection destination information to each server, when each caller number is included. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connection interface control device, a connection interface control program, a connection interface control method, and an IP exchange, and can be applied to, for example, a conversion system for an interconnection interface between servers in an IP (Internet Protocol) telephone network.

  In recent years, so-called IP telephone systems (services) that realize voice communication using an IP network have rapidly spread, and various forms of interconnection communication have been started accordingly.

  In the conventional interconnection mode, for example, the interconnection between IP telephone companies that have acquired IP telephone numbers (for example, 050 number) by themselves, or, for example, the IP telephone number is not acquired by itself, and There is an interconnection between an IP telephone operator that receives a so-called wholesale service and an ISP (Internet service provider) without having an IP telephone exchange (server).

  Here, as a protocol for interconnection, a standard is defined on the basis of SIP (Session Initiation Protocol). The former is TTC (corporate information communication) as a condition for interconnecting IP telephone exchanges (servers including proxies). Technical Committee) standard (see Non-Patent Document 1) has been established. The latter generally provides a service in a form in which an IP telephone terminal is directly acquired by an IP telephone provider's server, and is defined as a terminal basic interface as a TTC standard (see Non-Patent Document 2). ing. Note that the same interface rule is also applied when the IP telephone company directly acquires the terminal without going through the ISP.

"Interconnect interface technical specifications between managed carrier SIP networks", JJ-90.25, Information and Communication Technology Committee (TTC) standard "Technical specifications for SIP terminal basic connection interface to connect to carrier SIP network", JJ-90.24, Information and Communication Technology Committee (TTC) standard

  However, as IP telephone services become widespread, connection forms that have not been assumed in the past have occurred, and a mechanism that can flexibly handle such connection forms is required.

  As one form of the connection form, for example, an ISP has its own IP telephone exchange (server), and an original IP telephone service (for example, a service that does not use an IP telephone number) is realized in the IP network in the ISP. The IP telephone number is paid out in the same form as the wholesale service from the IP telephone carrier, and only when communicating using the IP telephone number, the IP telephone number is interconnected with the IP telephone carrier to realize the service. . At this time, the terminal is accommodated in an IP telephone exchange (server) in the ISP.

  In the case of the above-described form, the IP telephone exchange (server) in the ISP and the IP telephone exchange (server) in the IP telephone carrier are connected between servers. In this case, the interface between the IP telephone exchanges (servers) is communicated as an interface for server-to-server interconnection (NNI: network-network interface), or an interface for terminal-server interconnection (UNI: user-network interface). ) Is not clear whether the communication is performed, and the conditions differ for each IP telephone carrier.

  For example, a certain IP telephone company side regards an IP telephone exchange (server) in an ISP as a terminal and obtains UNI for interface conditions from the same idea as providing a general wholesale service. On the other hand, another IP telephone service provider may request to exchange signals with NNI because it is exchange between IP networks.

  There are other IP telephone operators that do not follow the TTC standard and require unique interface conditions. There is a need for a mechanism that can flexibly cope with such problems with an IP telephone exchange (server) in the ISP that receives the IP telephone number.

  Therefore, the present invention has been made to solve the above problems, and provides a connection interface control device, a connection interface control program, a connection interface control method, and an IP switch.

  In order to solve such a problem, the connection interface control device according to the first aspect of the present invention provides communication between one or a plurality of servers that are interconnected using a predetermined caller number assigned to each telecommunications carrier. A connection interface control device for controlling connection interface processing, wherein (1) each caller number issued from each telecommunications carrier, connection destination information to each server, and connection conditions between each server, Connection information management means for managing in association with each other, (2) connection interface processing means for performing connection interface processing of a plurality of different patterns, and (3) each caller ID in a received signal received from any of the terminals accommodated. And (4) if each caller ID is included, to the caller ID included in the received signal and / or each server A connection interface process execution instructing unit for acquiring a connection condition with each server from the connection information managing unit based on the connection destination information, and causing the connection interface processing unit to execute a connection interface process corresponding to the acquired connection condition; It is characterized by providing.

  A connection interface control program according to a second aspect of the present invention is a connection interface that controls connection interface processing with one or a plurality of servers that are interconnected using a predetermined caller number assigned to each telecommunications carrier. A control program that manages (1) each caller number paid out from each telecommunications carrier, connection destination information to each server, and connection conditions between each server in a computer. Connection information management means, (2) connection interface processing means for performing a plurality of different connection interface processes, and (3) whether each caller ID is included in a received signal received from any of the terminals accommodated. (4) If each caller number is included, caller number included in the received signal and / or connection to each server Based on the information, a connection condition with each server is acquired from the connection information management unit, and the connection interface process execution instruction unit is configured to cause the connection interface processing unit to execute a connection interface process corresponding to the acquired connection condition. Features.

  A connection interface control method according to a third aspect of the present invention is a connection interface that controls connection interface processing with one or a plurality of servers that are interconnected using a predetermined caller number assigned to each communication carrier. It is a control method, and (1) connection information management means corresponds to each caller number issued from each telecommunications carrier, connection destination information to each server, and connection conditions between each server. A connection information management step that is attached and managed, (2) a connection interface processing step in which the connection interface processing means performs connection interface processing of a plurality of different patterns, and (3) a signal processing means from any of the terminals accommodated. A signal processing step for determining whether or not each caller number is included in the received signal received, and (4) a connection interface processing execution instruction means for each outgoing call If a number is included, the connection condition with each server is acquired from the connection information management means based on the caller number and / or connection destination information included in the received signal, and the acquired connection A connection interface processing execution instructing step for causing the connection interface processing means to execute the connection interface processing corresponding to the condition.

  An IP exchange according to a fourth aspect of the present invention includes the connection interface control apparatus according to the first aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, it can respond flexibly also to the connection form with each telecommunications carrier server.

(A) First Embodiment Hereinafter, embodiments of a connection interface control device, a connection interface control program, a connection interface control method, and an IP exchange according to the present invention will be described with reference to the drawings.

(A-1) Configuration of the First Embodiment FIG. 1 is a configuration diagram showing the overall configuration of the IP telephone communication network of the present embodiment and functional blocks showing the internal configuration of the IP exchange.

  As shown in FIG. 1, the IP telephone communication network 9 of this embodiment includes an IP network 10 and an IP network 20 owned by one or more other IP telephone operators. An IP telephone exchange (server) 1 is arranged on the top, and an IP telephone exchange (server) 2 is arranged on each IP network 20.

  Here, each of the IP network 10 and the IP network 20 is a communication network whose communication protocol is IP (Internet Protocol). The IP network 10 is, for example, a network owned by an ISP, and each of the IP networks 20 includes a plurality of different networks. Assume that each network is owned by an IP telephone carrier. Further, the IP networks 10 and 20 can be applied to a wired line, a wireless line, or a network that combines them, and can be applied to any of a dedicated network and a public network.

  The IP telephone exchange 1 is provided on the IP network 10 and accommodates a plurality of user terminals A and B. Upon receiving a call request from one of the user terminals A and B, 1 is a server that controls call connection between the two and realizes voice communication (so-called IP telephone communication) using the network 10. The number of user terminals A and B to be accommodated is not particularly limited.

  The IP telephone exchange 1 can be connected to the IP telephone exchange 2 of another IP telephone carrier through the IP networks 10 and 20, and each IP telephone exchange 2 is connected to each IP telephone carrier. It can be connected with connection conditions according to the contents of a predetermined contract.

  As a result, the IP telephone exchange 1 not only provides the IP telephone communication between the user terminals A and B connected in the IP network 10 but also any one of the user terminals A and B and the user terminal C on the other IP network 20. IP telephone communication between the two can also be realized.

  Further, in order to realize at least IP telephone communication with the user terminal C, the owner of the IP network 10 has been assigned an IP telephone number (for example, 050 number) by the IP telephone carrier of the IP network 20, and the IP telephone number Must be used.

  Furthermore, when there is a call request from the accommodated user terminals A and B to the user terminal C, the IP telephone exchange 1 specifies a connection condition with the IP exchange 2 of the IP network 20 to which the user terminal C is connected, The interconnection interface process is performed according to the connection condition.

  Next, a main internal configuration of the IP telephone exchange 1 will be described with reference to FIG. In FIG. 1, the IP telephone exchange 1 includes a routing analysis scenario unit 11, an IF conversion processing unit 12, a signal processing unit 13, a user information management unit 14, and a routing information management unit 15.

  Although not shown, the hardware configuration of the IP telephone exchange 1 is configured to include, for example, a CPU, a ROM, a RAM, an EEPROM, and the like as its control unit. For example, the CPU is stored in the ROM. By realizing the processing program, the function of the IP telephone exchange 1 is realized.

  The signal processing unit 13 performs signal transmission / reception processing, and includes at least a signal analysis / editing processing unit 13a and a routing analysis scenario engine 13b.

  The signal analysis / editing processing unit 13a analyzes the signal content included in the received signal, creates a transmission signal corresponding to the signal content, and gives it to the IP exchange 2 and the user terminals A and B. The signal analysis / editing processing unit 13a performs user authentication based on the received signal to determine whether the request is made by the contract subscriber.

  When there is a call request from either user terminal A or B, the routing analysis scenario engine 13b activates the routing analysis scenario unit 11 for resolving the address of the signal transmission destination and converting it into an interface condition with the transmission destination. Is. The routing analysis scenario unit 11 is positioned higher than the signal processing unit 13.

  The routing analysis scenario unit 11 determines the address resolution of the signal transmission destination when transmitting the signal and the interface condition of the transmission destination, and starts the interface conversion processing 12 according to the transmission signal.

  The routing analysis scenario unit 11 specifies an interface condition of a transmission destination by a preset procedure, and determines an interface conversion processing unit 12 according to the interface condition. Thereby, the interface process according to the other party's connection form can be performed.

  Further, since the routing analysis scenario unit 11 is positioned above the signal processing unit 13 as described above, for example, even if the number of interconnection destinations increases, the routing analysis scenario unit 11 does not change the software body. It can respond flexibly by replacing only the part 11.

  The IF conversion processing unit 12 converts a signal into a predetermined format, and performs interface processing of a connection form defined by a contract with each IP telephone carrier. The IF conversion processing unit 12 has a plurality of conversion processing units (N IF conversion processing units in FIG. 1) in advance, and is selected by the routing analysis scenario unit 11.

  The user information management unit 14 manages information about contract subscribers and can be collated at the time of user authentication.

  The routing information management unit 15 manages information in which connection destination addresses such as server addresses (for example, IP addresses and IP telephone numbers) of other IP telephone service providers are associated with respective connection conditions.

  FIG. 4 is an example of items of information managed by the routing information management unit 15. As shown in FIG. 4, examples of management items of the routing information management unit 15 include “calling number code”, “IP telephone operator”, “setting domain name”, “setting IP address”, and “interconnection IF condition”. And

  The “calling phone number code” is an IP phone number issued from each IP phone carrier. “IP telephone operator” is the name of the IP telephone operator. The “set domain name” is a domain name set by the IP telephone carrier, and the “set IP address” is the IP address of the IP telephone exchange of each IP telephone carrier. The “interconnection IF condition” is a connection interface condition between the IP telephone exchange 1 and each IP telephone exchange 2.

(A-2) Operation of the First Embodiment Next, the operation of the connection interface conversion processing in the IP telephone exchange 1 of the present embodiment will be described with reference to the drawings.

  FIG. 2 is an explanatory diagram for explaining a connection model between the IP telephone exchange 1 owned by the ISP and the IP telephone exchanges 2 (2-1 to 2-3) possessed by the three IP telephone operators TA to TC. It is.

  In FIG. 2, the interface conditions between the ISP of the IP network 10 and the IP telephone carriers TA to TC of the other IP network 20 are as follows.

(1) The ISP has been assigned an IP telephone number (for example, 050 number) from each of the IP telephone carriers TA to TC. Therefore, when communicating with the IP telephone number, the communication service is realized by interconnecting with the IP telephone exchanges 2-1 to 2-3 of the IP telephone carriers TA to TC.

(2) The connection interface condition IF1 between the IP telephone exchange 1 and the IP telephone exchange 2-1 is UNI connection, and the connection interface condition IF2 with the IP telephone exchange 2-2 is NNI connection. The connection interface condition IF3 with 2-3 is a unique interface. The connection interface condition IF4 between the IP telephone exchange 1 and the user terminal A is assumed to be UNI connection.

  Hereinafter, the operation in the IP telephone exchange 1 when the user terminal A is a calling terminal and a call request is made to the IP telephone exchange 1 will be described with reference to the flowchart of FIG.

  First, a call request signal is given to the IP telephone exchange 1 from the user terminal A which is a transmission terminal, and the IP telephone exchange 1 receives the signal (F1).

  When the signal from the user terminal A is received, the signal processing unit 13 reads the signal information (sender information) included in the received signal, and is managed by the signal information (sender information) and the user information management unit 14. The caller authentication process is executed by collating the user information with the current user information (F2).

  At this time, if the authentication result is NG, the signal processing unit 13 transmits that fact to the user terminal A that is the transmission terminal (F3).

  If the authentication result is OK, the signal processing unit 13 determines whether or not an IP telephone number is included in the received signal (F4).

  When the IP telephone number is not included in the received signal, the signal processing unit 13 determines that the call request from the user terminal A is a closed service in the IP network 10 provided by the ISP, and performs predetermined processing. Connection processing according to service conditions is performed (F5).

  On the other hand, when the received signal includes an IP telephone number, the signal processing unit 13 performs transmission signal editing (creates an original signal of the transmission signal) according to the service conditions in the IP exchange 1, and thereafter Then, the routing analysis scenario unit 11 is activated (F6).

  At this time, the contents of the transmission signal edited for the transmission signal are also taken over by the routing analysis scenario unit 11.

  When the routing analysis scenario unit 11 is activated, the routing analysis scenario unit 11 reads information (domain information, 050 number, etc.) set on the signal, and uses the information (domain information, 050 number, etc.). The information managed by the routing information management unit 15 is collated, and it is determined whether or not the information is information set in the routing information management unit 15 (F7).

  At this time, when information such as domain information or calling number 050 is not set, the signal processing unit 13 determines that the condition is not permitted, and transmits that fact to the user terminal A, which is the calling terminal ( F8).

  On the other hand, when information such as domain information and calling number 050 is set, the routing analysis scenario unit 11 identifies the interface conversion processing unit 12 according to the conditions corresponding to the information, and the identified interface conversion processing The unit 12 is activated (F9).

  FIG. 5 is an image diagram for explaining processing in the IP telephone exchange 1. In FIG. 5, the routing analysis scenario unit 11 is started by the routing analysis scenario engine 13b of the signal processing unit (signal processing process) 13 and executed thereon (S1).

  Further, the routing analysis scenario unit 11 refers to the routing information management unit 15, and based on information such as an IP telephone number and a domain name included in the received signal, a destination (IP telephone operator, IP telephone exchange) Is determined, and the IF condition of the transmission destination is determined, and the IF conversion processing unit 12 corresponding to the condition is selected and determined. At this time, an interface conversion process of a change pattern that can be assumed in advance is prepared (S3).

  The routing analysis scenario unit 11 can specify the interconnection IF condition based on either the IP phone number and domain name included in the received signal or the IP phone number and domain name.

  At this time, even if the number of interconnection destinations increases, if only the routing scenario is basically changed, the other processes need not be changed (S2).

  FIG. 6 shows execution processes of the signal processing unit 13 and the routing analysis scenario unit 11.

  In FIG. 6, when the signal analysis / edit processing unit 13a determines that the IP telephone number is set on the received signal, the routing analysis scenario engine 13b activates the routing analysis scenario 11.

  Then, the routing analysis scenario 11 first confirms whether the IP telephone number set in the caller number setting field on the signal header, the domain name set in the Req-URI, or the like is described. Here, whether to analyze by IP telephone number or domain name, the routing analysis scenario 11 can arbitrarily set the items to be confirmed according to the service provision conditions with each IP telephone carrier.

  Next, when an IP telephone number, a domain name, or the like is entered, the IF conversion processing 12 is activated with reference to the routing information management unit 15 as described above.

  If no IP phone number or domain name is entered, a common NG route (default tag, etc.) process (for example, a response code is set and a response process is started) is executed.

  Then, the interface conversion processing unit 12 activated by the routing analysis scenario unit 11 edits the original transmission signal into a transmission signal that meets the interface conditions for the IP telephone carrier, and transmits the transmission signal to the IP telephone carrier (F10). ).

(A-3) Effect of First Embodiment As described above, according to the present embodiment, an ISP that owns an IP telephone exchange (server) 1 and independently implements an IP telephone service is an IP telephone. When implementing communication using a number, instead of acquiring the IP phone number on its own, as in the case of the wholesale IP phone service, the IP phone number is issued from the IP phone service provider. Even in special network conditions for realizing interconnection between the IP telephone exchange (server) 1 on the ISP side and the IP telephone exchange (server) 2 of the IP telephone carrier, various connection conditions are set in advance on the IP telephone exchange side on the ISP side. By implementing routing analysis logic and signal editing logic in consideration of the above, it becomes possible to flexibly connect with a plurality of IP telephone operators.

It is a block diagram which shows the structure of the IP telephone communication network and IP telephone switching device of 1st Embodiment. It is a connection form figure for demonstrating operation | movement of 1st Embodiment. It is a flowchart which shows the processing operation in the IP telephone exchange of 1st Embodiment. It is explanatory drawing which shows the example of a management item of the routing information management part of 1st Embodiment. It is explanatory drawing explaining the process of the signal processing part of 1st Embodiment. It is explanatory drawing explaining the execution process of the routing analysis scenario part of 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... IP switch, 2 ... IP switch, 11 ... Routing analysis scenario part, 12 ... IF conversion process part, 13 ... Signal process part, 13a ... Signal analysis / edit process part, 13b ... Routing analysis scenario engine, 14 ... User information Management unit, 15 ... Routing information management unit, 10 ... IP network, 20 ... Other carrier IP network, 9 ... IP telephone communication network.

Claims (6)

A connection interface control device for controlling connection interface processing with one or a plurality of servers interconnected using a predetermined caller number assigned to each telecommunications carrier;
Connection information management means for managing each caller number paid out from each communication carrier, connection destination information to each server, and connection conditions between each server in association with each other;
A connection interface processing means for performing different patterns of connection interface processing;
A signal processing means for determining whether or not each caller number is included in a received signal received from any of the terminals accommodated;
When each caller number is included, the connection condition with each server is connected based on the caller number included in the received signal and / or the connection destination information to each server. A connection interface control apparatus comprising: a connection interface process execution instructing unit that acquires from the information management unit and causes the connection interface processing unit to execute a connection interface process corresponding to the acquired connection condition.   2. The connection interface control apparatus according to claim 1, wherein the connection interface process execution instructing unit is a unit located in an upper layer of the signal processing unit and is replaceable. The connection interface processing means has a plurality of connection interface processing units for performing different connection interface processes set in advance,
The connection interface control apparatus according to claim 1, wherein the connection interface process execution instructing unit selects and determines one of the corresponding connection interface processing units based on the acquired connection condition. A connection interface control program for controlling connection interface processing between one or a plurality of servers interconnected using a predetermined caller number assigned to each telecommunications carrier,
On the computer,
Connection information management means for managing each caller number paid out from each communication carrier, connection destination information to each server, and connection conditions between each server in association with each other;
Connection interface processing means for performing different patterns of connection interface processing,
A signal processing means for determining whether or not each caller number is included in a received signal received from any of the terminals accommodated;
When each caller number is included, the connection condition with each server is connected based on the caller number included in the received signal and / or the connection destination information to each server. A connection interface control program that functions as a connection interface process execution instructing unit that acquires from the information management unit and causes the connection interface processing unit to execute a connection interface process corresponding to the acquired connection condition. A connection interface control method for controlling connection interface processing with one or a plurality of servers interconnected using a predetermined caller number assigned to each telecommunications carrier,
A connection information management unit associates and manages each caller number issued from each telecommunications carrier, connection destination information to each server, and connection conditions between the servers. Information management process;
A connection interface processing means, wherein the connection interface processing means performs a plurality of different patterns of connection interface processing;
A signal processing step for determining whether or not each caller number is included in a received signal received from any of the terminals accommodated by the signal processing means;
When the connection interface process execution instruction means includes each of the caller numbers, each server is based on the caller number included in the received signal and / or the connection destination information to each server. A connection interface processing execution instructing step for causing the connection interface processing means to execute a connection interface process corresponding to the acquired connection condition. Connection interface control method. An IP exchange comprising the connection interface control device according to claim 1.

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