JP2004336663A - Additional ip telephone service provision method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an additional IP telephone service provision method with which even a service provider who cannot be connected to an IP network, is enabled to provide his own service to an arbitrary subscriber who wants the service. <P>SOLUTION: When a call is originated from a terminal 20 which is connected to a telephone network 120, to an IP terminal 10, an exchanges 130 connects the call to a gateway 50 on the basis of its IP telephone number. The gateway 50 converts the IP telephone number into a domain name, acquires the URI of a service provider retrieved from a DNS server 30, acquires the IP address and the port number of an SIP server 60 of the service provider from the DNS server 30 on the basis of the URI, and connects the call to the SIP server 70. The SIP server 70 refers to registered contents according to the IP address and the port number and transfers control to an application (AP) server 80 when the authenticated result is OK, and the corresponding service (such as connection or incoming call rejection) is provided to the IP terminal 10 by the AP server 80. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for providing an IP telephone supplementary service. In particular, in an IP telephone service using an IP network, an ISP of a subscribed ISP can be authenticated from a DNS server search result once through a service provider. The present invention relates to a method for providing an IP phone supplementary service that enables an IP phone supplementary service to be performed without being limited to a service menu.
[0002]
[Prior art]
When realizing an IP telephone service using an IP network, searching for an IP address from a telephone number using a DNS function is a means for connecting to various destinations on the IP network. As an example of the connection means, Patent Literatures 1 and 2 disclose that when a telephone connected to a telephone network makes a call to an IP telephone, a telephone number of a connection destination is converted into an IP address on the way, and the other party's IP telephone is This document describes the technical contents that enable connection to the Internet.
[0003]
FIG. 4 shows a system configuration diagram of an IP network system for providing an IP telephone service using the connection means. Referring to FIG. 4, the conventional system connects to the gateway 211 when the exchange 230 of the telephone network 220 identifies that the telephone number dialed from the terminal 215 is an IP telephone number, and the gateway 211 converts the telephone number into a domain name. , And the DNS server 212 is searched. The DNS server 212 returns the URI to the gateway 211, and the gateway 211 acquires the IP address and the port number of the corresponding SIP server 213 based on the URI, and routes the SIP server 213 to the SIP server 213 according to the address and the port number. The SIP server 213 implements a call by routing to the corresponding terminal 214. However, conventionally, there were the following problems.
[0004]
First, in realizing a new supplementary service using the IP technology, a service provider that can provide the service is limited to only a communication provider having a network for an IP telephone service.
In addition, users who can receive the service are limited to users who have subscribed to an ISP that provides an IP telephone service by connecting to the communication carrier.
[0005]
Next, the problems with the services provided in the conventional public network will be described. First, regarding the toll-free service, the current toll-free dial has a dedicated toll-free dial. Will be. In this case, only a specific person cannot be toll-free.
In addition, when there is no response to an incoming call from an unspecified number of people, there is a service that connects to the answering service, but it is not possible to connect only from a specific person to the answering service. As described above, the additional service cannot be implemented by the combination of the caller and the callee.
[0006]
[Patent Document 1]
JP 2002-237907 A
[Patent Document 2]
JP-A-2002-252655
[0007]
[Problems to be solved by the invention]
In view of the above, according to the present invention, a service is provided to any desired subscriber even if the operator does not have a facility for interconnecting the existing telephone network and the IP network or has no contract subscriber. An object of the present invention is to provide a method for providing an IP telephone supplementary service that can be provided.
[0008]
It is another object of the present invention to provide an IP telephone supplementary service providing method in which a subscriber who has contracted with a certain ISP can continue to receive the service of another company if there is a favorite service while continuing the contract. .
[0009]
It is another object of the present invention to provide an IP telephone supplementary service providing method capable of implementing supplementary services for each subscriber (a combination of a called party, a calling party, and a called party).
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned object, the invention according to claim 1 includes an application server having first storage means for storing IP telephone service information indicating an IP telephone service, a first SIP server, and an IP telephone service. It has a second storage means for storing service use conditions of a user to use and a management server for managing service use status of each user by having an authentication means for authenticating the user, and uses an IP telephone service. A DNS server, an IP communication terminal of the user, and a second SIP server are connected to an IP network to transmit and receive IP telephone service information. The server system and the DNS server are interconnected, and the user is connected to the IP network system. A method for providing an additional IP telephone service when an additional IP telephone service information possessed by a server system is transmitted to an IP communication terminal, unlike an IP telephone service that can be used by connecting to a first SIP. A first step in which the server transmits authentication request information representing the user's authentication request to the management server, wherein the management server receives the authentication request information from the first SIP server, and the authentication unit transmits the authentication request information from the second storage unit. A second step of outputting the authentication approval result by referring to the service use conditions of the subscriber and transmitting the authentication approval result to the application server; the application server receives the authentication approval result from the management server, and stores the first storage A third step of referring to the IP telephone service information by means, and the first SIP server searches for the DNS server and routes the DNS server to the second SIP server. A fourth step that the application server, characterized by having a fifth step of transmitting the IP telephone service information via the DNS server to the IP communication terminal.
[0011]
According to a second aspect of the present invention, in the first aspect of the present invention, the connection means for interconnecting networks having different types of protocols and the communication terminal of the caller are respectively connected to a telephone network. A telephone network system for transmitting and receiving predetermined information to and from an IP network is formed. The telephone network and the IP network are interconnected by connection means. A method for providing an IP telephone supplementary service when a call is made to a terminal, wherein the connection means converts a telephone number transmitted from the communication terminal into a domain name, searches the DNS server, and executes the first SIP server. Before performing the first step.
[0012]
According to a third aspect of the present invention, in the first aspect of the present invention, the IP communication terminal of the caller is connected to the IP network and forms an IP network system for transmitting and receiving IP telephone service information. A method for providing an IP phone supplementary service when a call is made from the caller's IP communication terminal to the user's IP communication terminal, wherein the second SIP server searches for the DNS server, Routing the first SIP server before performing the first step.
[0013]
The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the DNS server, the second IP communication terminal owned by the user, and the third SIP server are each a third server. A second IP network system for transmitting and receiving IP telephone service information, wherein the second IP network system and the IP network system are interconnected; Unlike an IP telephone service that a user can use by connecting to an IP network, a method for providing an additional IP telephone service when additional IP telephone service information of a server system is transmitted to a second IP communication terminal In the fifth step, the application server sends IP telephone service information to the IP communication terminal via the DNS server. The first SIP server searches for the DNS server and routes it to a third SIP server when it is not possible to communicate, and the application server transmits the IP telephone service information via the DNS server. To the second IP communication terminal.
[0014]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the IP telephone service is a call rejection service, and the IP phone service information is a call reception rejection service. It is rejected service information.
[0015]
The invention according to claim 6 is the invention according to any one of claims 1 to 4, wherein the IP telephone service is a toll-free service, and the IP telephone service information is a free call indicating a toll-free service. It is dial service information.
[0016]
The invention according to claim 7 is the invention according to any one of claims 1 to 4, wherein the IP phone service is a chasing phone service, and the IP phone service information is a chasing phone service representing the chasing phone service. It is characterized by telephone service information.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0018]
<Configuration of First Embodiment>
With reference to FIG. 1, a system configuration for implementing a method for providing an IP telephone supplementary service by the service provider 100 will be described.
[0019]
Referring to FIG. 1, the system according to the first embodiment includes an IP terminal 10 used by an IP telephone service user, a terminal 20 used by a caller, a DNS server 30, a gateway 50, and an IP having the terminal 10. An IP network 110 to which a telephone service user belongs, an SIP server 70 set in the IP network 110, an existing telephone network 120 to which the terminal 20 belongs, an existing exchange 130, a service provider 100 for providing a service, It comprises an SIP server 60 installed by the business operator 100, a subscriber management server 40, and an application server 80.
[0020]
The IP terminal 10 is a device that enables voice communication by combining an existing telephone and a terminal adapter that can connect the existing telephone, and a device that realizes voice communication using an IP network such as a personal computer.
[0021]
Terminal 20 is a normal telephone.
[0022]
The gateway 50 has a function of interconnecting the existing telephone network 120 and the IP network 110, a function of converting a telephone number into a domain name, and a function of searching the DNS server 30.
[0023]
The DNS server 30 has a function of returning a URI, an IP address, and a port number corresponding to a domain name to an inquiry destination.
[0024]
The SIP server 60 has a function of routing to the SIP server 70 and a function of searching for the DNS server 30.
[0025]
The SIP server 70 has a function of routing to the IP terminal 10 and a function of searching for the DNS server 30.
[0026]
The subscriber management server 40 has a function of authenticating a subscriber and a function of determining whether or not to provide a service and the type of service to be provided based on a result of the authentication, based on a combination of a caller and a callee.
[0027]
The application server 80 has a function of performing various services.
[0028]
<Operation of First Embodiment>
Next, with reference to FIG. 1, an operation process of the IP telephone supplementary service providing method by the service provider 100 will be described.
[0029]
In FIG. 1, an IP telephone service user who uses an IP terminal 10 makes a service use application to a service provider 100. The service provider 100 registers so that its own URI is issued from the DNS server 30. Further, the authentication setting of the service user, service contents, and service providing conditions are set in the subscriber management server 40.
[0030]
When the caller uses the terminal 20 to make a call to the IP terminal 10 of the IP telephone service user, the DNS server 30 is searched, and the DNS server 30 returns the URI of the service provider 100 to the gateway 50. The gateway 50 acquires the IP address and the port number of the SIP server 60 of the service provider 100 based on the URI, and routes the SIP server 60 according to the address and the port number. The SIP server 60 refers to the registered contents of the subscriber management server 40, and if the authentication is OK, the application server 80 provides the corresponding service.
[0031]
In FIG. 1, a subscriber who uses the terminal 10 has a contract with an ISP having the IP network 110, and receives a service by paying a monthly fee. When a subscriber who uses the terminal 10 wants to receive a service provided by the service provider 100 who does not have a facility for interconnecting with the IP network 110, he pays a monthly flat-rate or pay-as-you-go service fee to the ISP having the IP network 110. .
[0032]
The ISP having the IP network 110 may set the DNS server 30 once through the service provider 100 and collect the service fee provided by the service provider 100 from the subscriber who uses the terminal 10. Thus, the service provider 100 obtains a percentage of the price paid by the subscriber who uses the terminal 10.
[0033]
Therefore, the service provider 100 has the ISP take over the work of collecting the fee from the subscriber, so that the operation cost can be reduced and the efficiency of its own work can be reduced, and a new fee income can be obtained as the ISP. .
[0034]
<Example 1 of Embodiment 1>
The operation of the example of the call rejection service provided by the service provider 100 in the first embodiment will be described in detail with reference to FIG.
[0035]
Referring to FIG. 1 in an IP telephone service using an IP network, an IP telephone service user who uses a terminal 10 applies to a service provider 100 for use of a call rejection service. The service provider 100 registers so that its own URI is issued from the DNS server 30 as a search result addressed to the IP terminal 10.
[0036]
Further, the IP telephone service user who uses the IP terminal 10 registers in the subscriber management server 40 that he or she has subscribed to the call rejection service. In addition, a number for which an incoming call is permitted is registered, and if it is not registered, connection to an answering machine is set. It is assumed that the number of the terminal 20 is not permitted.
[0037]
When the terminal 20 makes a call to the IP terminal 10, the DNS server 30 is searched, and the DNS server 30 returns the URI of the service provider 100 to the gateway 50. The gateway 50 acquires the IP address and the port number of the SIP server 60 of the service provider 100 based on the URI, and routes the SIP server 60 according to the address and the port number.
[0038]
The SIP server 60 refers to the registered contents of the subscriber management server 40, and when the authentication is OK, the processing is shifted to the application server 80. The application server 80 searches the type of service and finds that it is necessary to provide a call rejection service. Further, it recognizes that the incoming call from the terminal 20 is rejected, and is connected to the answering service of the application server 80.
[0039]
<Example 2 of Embodiment 1>
Next, the operation of the example of the free dial service provided by the service provider 100 in Embodiment 1 will be described in detail with reference to FIG.
[0040]
Referring to FIG. 1 in the IP telephone service using the IP network, an IP telephone service user using the terminal 10 applies to the service provider 100 for use of the free dial service. It is assumed that the service provider 100 owns a toll-free number.
[0041]
The service user who uses the IP terminal 10 registers in the subscriber management server 40 that he or she has subscribed to the free dial service. In addition, it is set that the free dial service is provided when the caller number is the number of the terminal 20.
[0042]
When the terminal 20 calls the free dial service number of the service provider 100, the DNS server 30 is searched, and the DNS server 30 returns the URI of the service provider 100 to the gateway 50. The gateway 50 acquires the IP address and the port number of the SIP server 60 of the service provider 100 based on the URI, and routes the SIP server 60 according to the address and the port number. After connecting to the SIP server 60, the terminal 20 dials the IP terminal 10.
[0043]
The SIP server 60 refers to the registered contents of the subscriber management server 40, and if the authentication is OK, the SIP server 60 routes to the SIP server 70 according to an instruction from the application server 80. The SIP server 70 calls the IP telephone 10.
[0044]
<Configuration of Second Embodiment>
Further, another example of a system configuration for realizing the IP telephone supplementary service providing method by the service provider 100 will be described with reference to FIG.
[0045]
Referring to FIG. 2, the system according to the second embodiment includes an IP terminal 10 used by an IP telephone service user at home, a terminal 20 used by a caller, a DNS server 30, a gateway 50, and a terminal 10. The IP network 110 to which the IP telephone service user belongs, the SIP server 70 set in the IP network 110, the existing telephone network 120 to which the terminal 20 belongs, the existing exchange 130, and the service provider 100 providing the service Server 60 installed by the service provider 100, the subscriber management server 40, the application server 80, the IP terminal 11 used by the IP telephone service user in the company, the IP network 140 to which the terminal 11 belongs, the IP network It comprises a SIP server 90 installed at 140.
[0046]
The IP terminals 10 and 11 are devices that enable voice communication by combining an existing telephone with a terminal adapter that can connect the existing telephone, and devices that realize voice communication using an IP network such as a personal computer.
[0047]
Terminal 20 is a normal telephone.
[0048]
The gateway 50 has a function of interconnecting the existing telephone network 120 and the IP network 110, a function of converting a telephone number into a domain name, and a function of searching the DNS server 30.
[0049]
The DNS server 30 has a function of returning a URI, an IP address, and a port number corresponding to a domain name to an inquiry destination.
[0050]
The SIP server 60 has a function of routing to the SIP server 70 and the SIP server 90 and a function of searching for the DNS server 30.
[0051]
The SIP server 70 has a function of routing to the IP terminal 10 and a function of searching for the DNS server 30.
[0052]
The SIP server 90 has a function of routing to the IP terminal 11 and a function of searching for the DNS server 30.
[0053]
The subscriber management server 40 has a function of authenticating a subscriber and a function of determining whether or not to provide a service and the type of service to be provided based on a result of the authentication, based on a combination of a caller and a callee.
[0054]
The application server 80 has a function of performing various services.
[0055]
<Operation of Second Embodiment>
Next, with reference to FIG. 2, the operation processing of the IP telephone supplementary service providing method by the service provider 100 will be described. In particular, taking the chase telephone service of the service provider 100 as an example, the operation of the embodiment will be described in detail. Will be described.
[0056]
Referring to FIG. 2 in the IP telephone service using the IP network, the IP telephone service user using the IP terminal 10 makes an application for the chasing telephone service to the service provider 100. The first call is registered with the company's IP terminal 11 and the second call is registered with the home's IP terminal 10 as the call order. When the service provider 100 searches the DNS server 30 as a search result addressed to the IP terminal 10, the service provider 100 registers so that its own URI is paid out.
[0057]
Further, the service user who uses the IP terminal 10 registers in the subscriber management server 40 that he or she has subscribed to the chasing telephone service. Also, it is all the caller IDs that perform the chasing telephone service, and it is registered to call in the order of company and home.
[0058]
When an arbitrary caller makes a call to the IP telephone service user, if the exchange 130 of the existing telephone network 120 identifies that the dialed telephone number is an IP telephone number, it connects to the gateway 50, and the gateway 50 converts the telephone number into a domain. The name is converted to a name, and the DNS server 30 is searched.
[0059]
The DNS server 30 returns the URI of the service provider 100 to the gateway 50. The gateway 50 searches the DNS server 30 based on the URI, finally obtains the IP address and the port number of the SIP server 60 of the service provider 100, and routes to the SIP server 60 according to the address and the port number.
[0060]
The SIP server 60 refers to the registered contents of the subscriber management server 40, and when the authentication is OK, the processing is shifted to the application server 80. The application server 80 searches the type of service and finds that it is necessary to provide a chasing telephone service. Recognizing that the service is provided regardless of the caller number, the application server 80 knows that the company IP telephone 11 is registered as the first call number. In response to an instruction from the application server 80, the SIP server 60 searches for the DNS server 30 and routes to the SIP server 90.
[0061]
The SIP server 90 calls the company's IP telephone 11. If no incoming call is made, the application server 80 instructs the SIP server 60 to call the home IP phone 10 registered in the second call. The SIP server 60 routes to the SIP server 70, and the SIP server 70 calls the IP telephone 10.
[0062]
In FIG. 2, a subscriber who uses the terminal 10 has a contract with an ISP having the IP network 110 and receives a service by paying a monthly fee. When a subscriber who uses the terminal 10 wants to receive a service provided by the service provider 100 who does not have a facility for interconnecting with the IP network 110, he pays a monthly flat-rate or pay-as-you-go service fee to the ISP having the IP network 110. .
[0063]
The ISP having the IP network 110 may set the DNS server 30 once through the service provider 100 and collect the service fee provided by the service provider 100 from the subscriber who uses the terminal 10. Thus, the service provider 100 obtains a percentage of the price paid by the subscriber who uses the terminal 10.
[0064]
Therefore, the service provider 100 has the ISP take over the work of collecting the fee from the subscriber, so that the operation cost can be reduced and the efficiency of its own work can be reduced, and a new fee income can be obtained as the ISP. .
[0065]
In the system configuration of the second embodiment, it is possible to apply the call rejection service and the free dial service of the service provider as described in the first and second embodiments of the first embodiment.
[0066]
<Configuration of Third Embodiment>
Next, another example of a system configuration for realizing a method of providing an IP telephone supplementary service by the service provider 100 in a case where the caller uses an IP network instead of the existing telephone network will be described with reference to FIG.
[0067]
Referring to FIG. 3, the system according to the third embodiment includes an IP terminal 310 used by an IP telephone service user at home, an IP terminal 320 used by a caller, a DNS server 330, and terminals 310 and 320. IP network 110 to which the IP telephone service user belongs, SIP server 370 set in IP network 110, service provider 400 providing the service, SIP server 360 installed by service provider 400, subscriber management It comprises a server 340, an application server 380, an IP terminal 311 used by an IP telephone service user in a company, an IP network 140 to which the terminal 311 belongs, and a SIP server 390 installed in the IP network 140.
[0068]
The IP terminals 310, 311 and 320 are devices that enable voice communication by combining an existing telephone and a terminal adapter that can connect the existing phone, and devices that realize voice communication using an IP network such as a personal computer.
[0069]
The DNS server 330 has a function of returning a URI, an IP address, and a port number corresponding to a domain name to an inquiry destination.
[0070]
The SIP server 360 has a function of routing to the SIP server 370 and the SIP server 390, and a function of searching for the DNS server 330.
[0071]
The SIP server 370 has a function of routing to the IP terminal 310 and a function of searching for the DNS server 330.
[0072]
The SIP server 390 has a function of routing to the IP terminal 311 and a function of searching for the DNS server 330.
[0073]
The subscriber management server 340 has a function of authenticating a subscriber, and a function of determining whether or not to provide a service and the type of service to be provided based on the authentication result based on a combination of a caller and a callee.
[0074]
The application server 380 has a function of performing various services.
[0075]
<Operation of Third Embodiment>
Next, an operation process of the method for providing an IP telephone supplementary service by the service provider 400 will be described with reference to FIG. 3. In particular, the chase telephone service of the service provider 400 will be taken as an example, and the operation of the embodiment will be described in detail. Will be described.
[0076]
Referring to FIG. 3 in the IP telephone service using the IP network, the IP telephone service user using the IP terminal 310 makes an application for the chasing telephone service to the service provider 400. The first call is registered with the company IP terminal 311 and the second call is registered with the home IP terminal 310 as the call order. When the service provider 400 searches the DNS server 330 as a search result addressed to the IP terminal 310, the service provider 400 registers so that its own URI is paid out.
[0077]
Further, the service user using the IP terminal 310 registers in the subscriber management server 340 that he or she has subscribed to the chasing telephone service. Also, it is all the caller IDs that perform the chasing telephone service, and it is registered to call in the order of company and home.
[0078]
When an arbitrary caller makes a call from IP terminal 320 to IP terminal 310, DNS server 330 is searched.
[0079]
The DNS server 330 returns the URI of the service provider 400 to the IP terminal 320. The IP terminal 320 searches the DNS server 330 based on the URI, finally obtains the IP address and port number of the SIP server 360 of the service provider 400, and routes to the SIP server 360 according to the address and the port number.
[0080]
The SIP server 360 refers to the registered contents of the subscriber management server 340, and if the authentication is OK, the processing shifts to the application server 380. The application server 380 searches for the type of service and finds that it is necessary to provide a chasing telephone service. Recognizing that the service is provided regardless of the caller number, the application server 380 knows that the company IP phone 311 is registered as the first call number. In response to an instruction from the application server 380, the SIP server 360 searches for the DNS server 330 and routes to the SIP server 390.
[0081]
The SIP server 390 calls the company's IP phone 311. If no incoming call is made, application server 380 instructs SIP server 360 to call home IP phone 310 registered in the second call. SIP server 360 routes to SIP server 370, which calls IP phone 310.
[0082]
In FIG. 3, the subscriber who uses the terminal 310 has a contract with the ISP having the IP network 110, and receives a service by paying a monthly fee. When a subscriber who uses the terminal 310 wants to receive a service provided by the service provider 400 who does not have a facility for interconnecting with the IP network 110, the subscriber pays a monthly flat-rate or pay-as-you-go service fee to the ISP having the IP network 110. .
[0083]
The ISP having the IP network 110 may set the DNS server 330 once through the service provider 400 and collect the service fee provided by the service provider 400 from the subscriber using the terminal 310. Thus, the service provider 400 obtains a percentage of the price paid by the subscriber who uses the terminal 310.
[0084]
Therefore, the service provider 400 has the ISP take over the business of collecting the fee from the subscriber, so that the operation cost can be reduced and the efficiency of its own business can be reduced, and the ISP can obtain a new fee income. .
[0085]
In the system configuration of the third embodiment, it is possible to apply the call rejection service and the toll-free service of the service provider as described in the first and second embodiments of the first embodiment.
[0086]
【The invention's effect】
From the above description, the present invention has the following effects.
[0087]
A first effect is that even a communication service provider who does not have a facility for interconnecting an existing telephone network and an IP network or a service service provider without a contracted subscriber can provide services to any desired subscriber. .
[0088]
A second effect is that a subscriber who has contracted with a certain ISP can receive a service of another company if there is a favorite service while continuing the contract.
[0089]
A third effect is that additional services can be provided for each subscriber (a combination of a called party, a calling party, and a calling party).
[Brief description of the drawings]
FIG. 1 is a system configuration diagram of an IP network system that performs an IP telephone supplementary service providing method according to a first embodiment.
FIG. 2 is a system configuration diagram of an IP network system that performs an IP telephone supplementary service providing method according to a second embodiment.
FIG. 3 is a system configuration diagram of an IP network system that performs a method for providing an IP telephone supplementary service according to a third embodiment;
FIG. 4 is a system configuration diagram of a conventional IP network system for providing an IP telephone service.
[Explanation of symbols]
10, 11, 20, 310, 311, 320, 214, 215 terminals
120, 220 telephone network
130, 230 exchange
110, 140 IP network
50, 211 gateway
70, 90, 370, 390, 213 STP server
30, 330, 212 DNS server
100, 400, 220 service providers
40, 340 subscriber management server
80, 380 Application server
60, 360 STP server

Claims (7)

An application server having first storage means for storing IP telephone service information representing an IP telephone service, a first SIP server, and a second storage means for storing service usage conditions of a user who uses the IP telephone service And a management server that manages the service usage status of each user by having an authentication means for authenticating the user, forming a server system for providing the IP telephone service to the user,
The DNS server, the user's IP communication terminal, and the second SIP server are connected to the IP network, respectively, and form an IP network system for transmitting and receiving IP telephone service information.
The server system and the DNS server are interconnected,
Unlike an IP telephone service that a user can use by connecting to an IP network, a method for providing an additional IP telephone service when additional IP telephone service information possessed by a server system is transmitted to an IP communication terminal. ,
A first SIP server for transmitting authentication request information representing a user authentication request to a management server;
The management server receives the authentication request information from the first SIP server, outputs the authentication approval result by referring to the service use condition of the subscriber from the second storage means, and outputs the authentication approval result to the application server. A second step of transmitting to
A third step in which the application server receives the authentication approval result from the management server and refers to the IP telephone service information from the first storage unit;
A first SIP server retrieving a DNS server and routing it to a second SIP server;
A fifth step of transmitting the IP telephone service information to the IP communication terminal via the DNS server by the application server. A connection means for interconnecting networks of different types of protocols and a communication terminal of the caller are connected to a telephone network, respectively, forming a telephone network system for transmitting and receiving predetermined information to and from the IP network. Yes,
The telephone network and the IP network are interconnected by connection means,
A method for providing an IP phone supplementary service when a call is made from a communication terminal of a caller to the IP communication terminal of a user,
The connecting means has a step of converting a telephone number transmitted from a communication terminal into a domain name, searching for the DNS server, and routing the first SIP server before performing the first step. 2. The method of providing an IP telephone supplementary service according to claim 1, wherein The IP communication terminal of the caller is connected to the IP network and forms an IP network system for transmitting and receiving IP telephone service information.
A method for providing an IP telephone supplementary service when a call is made from a caller's IP communication terminal to the user's IP communication terminal,
The IP telephone addition according to claim 1, wherein the second SIP server has a step of searching for the DNS server and routing the first SIP server before performing the first step. Service delivery method. A second IP network system for transmitting and receiving IP telephone service information, wherein the DNS server, the second IP communication terminal of the user, and the third SIP server are each connected to a second IP network; Forming
A second IP network system and said IP network system are interconnected;
Unlike an IP telephone service that a user can use by connecting to an IP network, a method for providing an additional IP telephone service when additional IP telephone service information of a server system is transmitted to a second IP communication terminal And
In the fifth step, when the application server cannot transmit IP telephone service information to the IP communication terminal via the DNS server, the first SIP server searches for the DNS server. Routing to a third SIP server;
4. The method according to claim 1, further comprising: transmitting the IP telephone service information to the second IP communication terminal via the DNS server. Service delivery method. The IP telephone service is a call rejection service,
The IP telephone supplementary service providing method according to any one of claims 1 to 4, wherein the IP telephone service information is call rejection service information indicating a call rejection service. The IP telephone according to any one of claims 1 to 4, wherein the IP telephone service is a free dial service, and the IP telephone service information is free dial service information indicating a free dial service. How to provide supplementary services. The IP phone service is a chasing phone service,
The IP phone supplementary service providing method according to claim 1, wherein the IP phone service information is chasing phone service information indicating a chasing phone service.

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