JP2004056633A - Ip (internet protocol) telephone system, ip telephone server, provision method of ip call service and ip telephone terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a provision method of IP (Internet protocol) call service of which the use for positively extending a hoop of communication is enabled by utilizing an IP telephone. <P>SOLUTION: A call group in which multi-call by a plurality of IP telephone terminals 3 is enabled is generated according to a primary call request from an IP telephone terminal 3, the generated call group is registered by imparting a group ID to it, exchange and control are performed so that the multi-call by the IP call terminals 3 belonging to the call group is enabled, the registered call group is opened so that it can be browsed by the IP telephone terminals 3 which can be connected via each base station 2 and the multi-call is enabled by making an IP telephone terminal 3 which performs a secondary call request by defining the opened call group as a destination participate in the call group according to the secondary call request from the IP telephone terminal 3. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention uses an IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and an IP telephone terminal capable of communicating with the base station. The present invention relates to an IP telephone system, an IP telephone server, an IP telephone service providing method, and an IP telephone terminal for performing IP telephone calls between IP telephone terminals via the IP telephone server.
[0002]
[Prior art]
Conventionally, an IP telephone system via the Internet has been proposed. In such an IP telephone system, for example, as disclosed in Japanese Patent Application Laid-Open No. 2002-171292, an originating terminal makes an outgoing request specifying a telephone number of a partner, and an incoming terminal approves connection. Thereafter, routing control is performed so as to enable communication between two parties, and a telephone can be added as necessary to enable three-way communication.
[0003]
[Problems to be solved by the invention]
However, the conventional IP telephone system employs a call start method in which a call originating terminal makes a call request that specifies the telephone number of the other party, and a call is started after approval is received. It is based on a two-way call. For this reason, the other party is already acquainted or the like, and the calling party must know the other party's telephone number. Therefore, it is impossible to start a call, such as listening to the contents of someone's conversation and participating in the conversation because the contents are interesting. The fact is that it was not possible as a problem.
[0004]
The present invention has been made in view of such circumstances, and provides an IP telephone system, an IP telephone server, and a method of providing an IP telephone service that can be used to actively expand a communication circle using an IP telephone. And an IP telephone terminal.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, an IP telephone system of the present invention includes an IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and capable of communicating with the base station. An IP telephone system using an IP telephone terminal and enabling a telephone call between the IP telephone terminals via the base station and the IP telephone server,
The above IP telephone server,
Grouping control means for generating, in response to a primary call request from an IP telephone terminal, a call group capable of performing multi-calls with a plurality of IP telephone terminals, assigning a group ID to the generated call group, and registering the generated call group in a group database;
Exchange control means for performing exchange control so as to enable multi-call by synthesizing voice signals received from the IP telephone terminals belonging to the call group and outputting the synthesized signal to each IP telephone terminal belonging to the call group;
Group publishing means for publishing the call group registered in the group database so that the call group can be browsed by an IP telephone terminal connectable via each base station,
In response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, the grouping control means enables the IP telephone terminal that has made the secondary call request to join the call group and perform a multi-call. The gist is to perform control such that
[0006]
As described above, since a call group capable of performing multi-calls by a plurality of IP telephone terminals is generated and made public so that the IP telephone terminals can view the call groups, even a third party who does not belong to the call group can use any communication group. Can see if they are currently talking. Then, in response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, the IP telephone terminal that has made the secondary call request joins the call group to enable multi-call. For this reason, it is possible to make a secondary call request to the interested call group among the browsed call groups, listen to the contents of the conversation there, and participate in the conversation because the contents are interesting. In this way, active communication participation, which was impossible with the conventional IP telephone system, becomes possible.
[0007]
In the IP telephone system of the present invention, the IP telephone server includes: a terminal database in which a terminal ID assigned to each IP telephone terminal is stored; a base station ID assigned to each base station; A base station database in which base station information including attribute information of the installation area and the installation location is stored. The group database includes a group ID of the generated call group and information of the IP telephone terminals belonging to the call group. Group information such as a terminal ID and a base station ID of a base station to which an IP telephone terminal belonging to a call group is connected is further stored, and the group publishing means publishes the group information stored in the group database. And makes it possible to search for a call group by the IP telephone terminal based on the disclosed group information. When an apparatus is provided with a scan engine is
As the group information, the group ID of the generated call group, the terminal ID of the IP telephone terminal belonging to the call group, the base station ID of the base station connected to the IP telephone terminal belonging to the call group, and the like are disclosed. Therefore, from these group information, it is possible to know to what extent the conversation group in which the conversation is taking place, and it is easy to select the conversation group.
In addition, since a search engine is provided which enables a search for a call group by an IP telephone terminal based on the group information disclosed above, the user searches for a talk group whose content is desired for conversation or information collection, Being able to participate in a group will enable you to gather qualified information, making it easier to find a place for communication that suits you.
[0008]
Further, in this case, the attribute information of the call group is stored in the group database, and the attribute information of the group is made public as the group information. It is possible to know to some extent whether the content is a conversation group in which a conversation is taking place, and it becomes easy to search and select a conversation group.
[0009]
In the IP telephone system according to the present invention, in the IP telephone server, the grouping control means selects whether the call group is open or closed by a user when generating the call group in response to a primary call request from an IP telephone terminal. When the input is received, the group publishing means publishes the call group only when the publishing selection input is received, and when the confidential selection input is received, the exchange control means controls the two-party call to be possible. in case of,
A user who does not want to disclose the call group makes a primary call request by selecting and inputting non-disclosure, thereby enabling a two-party call without a third party.
[0010]
In the IP telephone system of the present invention, the IP telephone server further includes lower layer generation means for generating a lower layer based on the attribute information of the base station stored in the base station database, and the grouping control means A call group between IP telephone terminals via a base station belonging to the lower layer is generated, and the exchange control means enables only a call from the IP telephone terminal via the base station belonging to the lower layer. If you have
For example, if the base station is installed at a particular restaurant chain, the base station installed at the store of that chain forms a lower layer, and conversation between users at the chain store is performed. It is also possible to limit to. By doing so, for example, an IP telephone service can be provided as part of the service to the customers of the chain store.
[0011]
In this case, it is also possible to give a point to an IP telephone terminal or a user who talks via a base station forming a lower layer and give a prize or the like according to the acquired point. By doing so, for example, not only the IP telephone service but also the point service can be implemented as a part of the service to the customers of the chain store.
[0012]
In the IP telephone system according to the present invention, the IP telephone server further includes a user database storing user information including a user ID of a user registered to make an IP telephone using an IP telephone terminal, and The control means authenticates the user ID input at the time of a call request from the IP telephone terminal to generate a call group, or, if it is made possible to join the call group,
Calls can be made only from registered users, and calls from unregistered users can be cut off. For this reason, for example, it is easy to count the call time for each user by the IP telephone server and charge for each user, or to give points according to the call time and give prizes etc. according to the acquired points. Become.
[0013]
In the IP telephone system of the present invention, the IP telephone terminal is configured to be able to make a call by connecting a user storage medium storing user information including a user ID, and the user of the user storage medium at the time of a call request. The information is read and transmitted together with the terminal ID to the IP telephone server. The IP telephone server reflects the terminal ID and the user information received from the IP telephone terminal in the group database and makes the information public. in case of,
Since the user information of the user who is actually talking is disclosed as group information, it is possible to know to some extent what kind of conversation group the conversation is taking, and it becomes easy to search and select a conversation group.
[0014]
In the IP telephone system according to the present invention, the group database further stores user information regarding a user who is using a telephone call using an IP telephone terminal belonging to the call group, and the group disclosure means includes the group information included in the group information. If the above user information is made public,
Since the user information of the user who is actually talking is disclosed as group information, it is possible to know to some extent what kind of conversation group the conversation is taking, and it becomes easy to search and select a conversation group.
[0015]
In the IP telephone system of the present invention, a case where the primary call request includes both a request for a call specifying the other party's IP telephone terminal and a request for a call in a standby state without specifying the other party's IP telephone terminal In
It is also possible to generate a call group by a primary call request specifying the other party's IP telephone terminal, to request a call in a standby state without specifying the other party's IP telephone terminal, and to wait for a user who participates in the call It is also possible to create a state call group.
[0016]
Also, the IP telephone server of the present invention includes an IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and an IP telephone terminal capable of communicating with the base station. An IP telephone server for use in an IP telephone system that enables a telephone call between IP telephone terminals via said base station and said IP telephone server,
The above IP telephone server,
Grouping control means for generating, in response to a primary call request from an IP telephone terminal, a call group capable of performing multi-calls with a plurality of IP telephone terminals, assigning a group ID to the generated call group, and registering the generated call group in a group database;
Exchange control means for performing exchange control so as to enable multi-call by synthesizing voice signals received from the IP telephone terminals belonging to the call group and outputting the synthesized signal to each IP telephone terminal belonging to the call group;
Group publishing means for publishing the call group registered in the group database so that the call group can be browsed by an IP telephone terminal connectable via each base station,
In response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, the grouping control means enables the IP telephone terminal that has made the secondary call request to join the call group and perform a multi-call. The gist is to perform control such that
[0017]
The present invention also provides an IP telephone service providing method, comprising: an IP telephone server provided on the Internet; a base station capable of communicating with the IP telephone server via the Internet; and an IP telephone terminal capable of communicating with the base station. A method for providing an IP telephone service that enables a telephone call between IP telephone terminals via the base station and the IP telephone server, using:
A grouping step of generating, in response to a primary call request from an IP telephone terminal, a call group capable of performing multiple calls by a plurality of IP telephone terminals, assigning a group ID to the generated call group, and registering the generated call group in a group database;
An exchange control step of performing exchange control so as to enable a multi-call by synthesizing a voice signal received from an IP telephone terminal belonging to the call group and outputting the synthesized signal to each IP telephone terminal belonging to the call group;
A call group publishing step of publishing the call group registered in the group database so that the call group can be browsed by an IP telephone terminal connectable via each base station;
In response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, control is performed so that the IP telephone terminal that has issued the secondary call request joins the call group to enable multi-call. That is the gist.
[0018]
Also, the IP telephone terminal of the present invention includes an IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and an IP telephone terminal capable of communicating with the base station. An IP telephone terminal for use in an IP telephone system, wherein the IP telephone terminal uses the base station and the IP telephone server to make a call between the IP telephone terminals.
Means for making a primary call request to the IP telephone server;
Means for making a secondary call request addressed to the call group generated and published by the IP telephone server in response to the primary call request,
The gist is that the secondary call request enables a multi-call with a plurality of IP telephone terminals belonging to the call group.
[0019]
In the IP telephone terminal of the present invention, the IP telephone terminal connects to the IP telephone server via the base station, browses the group information published by the IP telephone server, and forms a call group by the IP telephone terminal based on the published group information. If you can search,
The user can search for a conversation group whose content is desired for conversation and information collection, and can participate in the conversation group, enable appropriate information collection, and easily find a place of communication suitable for oneself.
[0020]
In the IP telephone terminal of the present invention, when making a primary call request for generating a call group from the IP telephone terminal 3 to the IP telephone server 1, the user can select whether to open or close the call group. In such a case, a user who does not want to disclose the call group can select and input non-disclosure and make a primary call request, thereby enabling a two-party call without a third party.
[0021]
In the IP telephone terminal of the present invention, a communication medium can be read and written by providing an interface connected to the storage medium, and a user storage medium storing user information including a user ID is connected to the interface to enable communication. With such a configuration, when the IP telephone terminal reads the user information in the user storage medium at the time of a call request and transmits it to the IP telephone server together with the terminal ID,
The IP telephone server reflects the terminal ID and the user information received from the IP telephone terminal in the group database and makes the information public, and the user information of the user who is actually talking is made public as the group information. It is possible to know to some extent whether the group is a conversation group in which the conversation is being conducted, and it becomes easy to search and select a conversation group.
[0022]
In the IP telephone terminal of the present invention, when a primary call request for generating a call group is made from the IP telephone terminal to the IP telephone server, the primary call request is a request for a call specifying the partner IP telephone terminal. And a device that requests a call in a standby state that does not specify the other party's IP telephone terminal.
A call group can be created by a primary call request specifying the other party's IP telephone terminal, or a call in a standby state in which the other party's IP telephone terminal is not specified and a user who participates in the call can be made to stand by. It is also possible to create a state call group.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail.
[0024]
FIG. 1 is a diagram showing an embodiment of the IP telephone system of the present invention.
[0025]
In the figure, reference numeral 1 denotes an IP telephone server which is connected to the Internet 4 via a route control device and a telephone line and performs an IP telephone by the present system. Although the IP telephone server 1 is shown as one device in the figure, a plurality may be used. Also, in the IP telephone server 1, various hardware required in the present system, such as hardware resources and software necessary for realizing various functions such as an IP telephone exchange function, a database server function, and a WWW server function, are provided. Software and software.
[0026]
2 is a base station, respectively. In this example, each base station 2 is connected to the Internet 4 by a wired line, wirelessly connects the terminal devices to the LAN, and relays and transmits data transmitted between the LAN and the WAN including the Internet. It is a router. Each of the base stations 2 includes various hardware and software necessary for relaying and transmitting data. Each base station 2 has a base station ID including an IP address or the like assigned to each base station 2.
[0027]
Reference numeral 3 denotes an IP telephone terminal. In this example, the IP telephone terminal 3 has not only a microphone 33 and a speaker 34 for performing a telephone function, but also a display unit 35 such as an LCD and an input unit such as an input button 36 (FIG. 3). reference). Each IP telephone terminal 3 has a terminal ID including an IP address and the like assigned to each IP telephone terminal 3. Each of the IP telephone terminals 3 is connected to the base station 2 via a wireless LAN, and can communicate with the IP telephone server 1 via the base station 2 and the Internet 4.
[0028]
In response to the primary call request from the IP telephone terminal 3, the IP telephone server 1 of the system generates a call group capable of performing a multi-call with a plurality of IP telephone terminals 3 and registers it in a group database. A call group registered in the database is made public so that it can be browsed by an IP telephone terminal 3 connectable via each base station 2, and the secondary call destination to the above-mentioned open call group from the IP telephone terminal 3 is set as a destination. In response to the call request, the IP telephone terminal 3 that has made the secondary call request is made to participate in the call group, thereby enabling multi-call between the IP telephone terminals 3 via the base station 2 and the IP telephone server 1. Control.
[0029]
FIG. 2 is a system configuration diagram showing the IP telephone server 1.
[0030]
In the figure, reference numeral 11 denotes a transmission / reception control unit, which controls communication including transmission and reception of data with the IP telephone terminal 3 via the base station 2 via the Internet 4.
[0031]
Reference numeral 12 denotes a database in which a user database 13, a group database 14, a base station database 15, and a terminal database 16 are stored.
[0032]
The user database 13 stores at least user IDs such as a user number and a password assigned to each registered user. For example, when a primary call is requested, a call is made using the IP telephone terminal 3. It is used when a user who wishes to enter a user ID for authentication.
[0033]
In addition to the above information, the user database 13 may store user-specific information such as a user's name, address, telephone number, and fax number. Further, attribute information such as date of birth, age, gender, area of residence, school name, occupation, subscription paper, reading magazine, hobbies and preferences can be stored. The hobby preference refers to, for example, a category or the like indicating an object of interest of the user, for example, “fashion”, “life”, “sports”, “video / music / book”, “hobby culture”, “car / motorcycle”, “car / bike” You can set restaurants, home appliances, services, beauty and health, leisure and travel, manga, art, cooking, computers, business trends, volunteers, and more. The input of such information may be performed online on a web page or by e-mail, or may be performed offline such as by mail or FAX.
[0034]
By storing such personal information and attribute information of the user, market research is performed by accumulating call history information of a call group in which a registered user has made a call and comparing it with attribute information such as hobbies and preferences. For example, or as information for transmitting an advertisement mail to the IP telephone terminal 3 during a call.
[0035]
Further, when such a user information is registered in a group database 14 to be described later in accordance with a call group generated in response to the primary call request, the user information of the user who is talking on the IP telephone terminal 3 belonging to the call group is grouped. It may be stored together with the information and made public when the call group is made public.
[0036]
The base station database 15 stores base station information relating to the base station 2 used when making an IP call by the present system. The base station information includes a base station ID including an IP address assigned to each base station 2, an installation area of each base station 2, attribute information of the installation place, and the like. These base station information are the base station information of the base station 2 that relays the call of the IP telephone terminal 3 belonging to the call group when the call group generated in response to the primary call request is registered in the group database 14 described later. May be stored in the group information, and may be made public when the call group is made public.
[0037]
For example, by disclosing the area where the base station 2 is installed, it is possible to search for a call group that is making an IP call and talking while staying in the same area. Further, as the attribute information of the installation location, for example, when the base station 2 is installed at a specific restaurant chain store, the restaurant chain is stored as attribute information, and the restaurant chain store is stored. It is possible to search for a call group that is talking on.
[0038]
The terminal database 16 stores a terminal ID such as an IP address assigned to each IP telephone terminal 3.
[0039]
In the group database 14, a call group generated by the primary call request is registered with a group ID and stored. In the group database 14, as the group information of the registered call group, the terminal ID of the IP telephone terminal 3 which belongs to the call group and talks, and the user who is talking using the IP telephone terminal 3 And the base station information including the base station ID of the base station 2 to which the IP telephone terminal 3 belonging to the call group is connected.
[0040]
Since the number of IP telephone terminals 3 and users who call in the call group increase or decrease as needed, the information in the group database 14 is reflected and updated each time. Further, the group database 14 can also store attribute information of a call group. The attribute information of the call group allows a user who makes a primary call request to generate a call group to operate the IP telephone terminal 3 to perform a selection input. Further, in addition to the above information, for example, information such as a call history of a call made while participating in each call group can also be stored and stored in the group database 14.
[0041]
As described above, as the group information, the group ID of the generated call group, the terminal ID of the IP telephone terminal 3 belonging to the call group, and the information of the base station 2 to which the IP telephone terminal 3 belonging to the call group is connected. Since the base station ID and the like are made public, it is possible to know to some extent from these group information what kind of conversation group the conversation is taking place, and it is easy to select a conversation group.
[0042]
Reference numeral 10 denotes a control unit that implements various functions in the system of the present invention, which will be described later, such as control of grouping and exchange according to a main program.
[0043]
The control unit 10 includes a grouping control unit 20, an exchange control unit 21, a negotiation control unit 22, a group disclosure unit 23, a search engine 24, a lower layer generation unit 25, and a database management unit 19.
[0044]
The database management means 19 registers and writes new data, extracts, reads, and updates data stored in the user database 13, group database 14, base station database 15, and terminal database 15 in the database 12. And other databases. Specifically, as will be described later, data is stored when a newly created call group is registered in response to a primary call request, or when the number of IP telephone terminals 3 and users belonging to the call group increase or decrease. In order to reflect this, data is deleted or added.
[0045]
The negotiation control means 22 responds to a call request from the IP telephone terminal 3 via the base station 2 (including both a “primary call request” and a “secondary call request” described later). 3 and negotiation control for establishing communication between the IP telephone terminal 3 and the IP telephone server 1, including user authentication.
[0046]
The grouping control means 20 generates a call group capable of performing a multi-call with a plurality of IP telephone terminals 3 in accordance with a primary call request from the IP telephone terminal 3 via the base station 2, and generates the generated call group. And a group ID is registered in the group database 14.
[0047]
Here, the primary call request includes both a request for a call specifying the other party's IP telephone terminal 3 and a request for a call in a standby state without specifying the other party's IP telephone terminal 3. However, the grouping control means 20 creates and registers a call group. Thus, a call group can be generated by a primary call request specifying the other party's IP telephone terminal 3, and a call in a standby state in which the other party's IP telephone terminal 3 is not specified is requested to participate in the call. It is also possible to generate a call group in a standby state for waiting for a user.
[0048]
Further, the grouping control means 20 performs control so that, when there is an increase or decrease in the number of IP telephone terminals 3 and users belonging to the call group, this is reflected in the group database 14.
[0049]
The grouping control means 20 responds to a secondary call request from the IP telephone terminal 3 addressed to the call group disclosed by the group disclosure means 23 described later, and the IP telephone terminal 3 which has made the secondary call request. Is made to participate in a call group to enable a call.
[0050]
The group publishing means 23 publishes the call group registered in the group database 14 so that the call group can be browsed by the IP telephone terminal 3 connectable via each base station 2. This disclosure can be performed, for example, in the form of a web page that can be browsed by the IP telephone terminal 3.
[0051]
The search engine 24 controls the IP telephone terminal 3 to enable a search for a call group based on the group information disclosed by the group disclosure means 23. By doing so, the user can search for a conversation group whose content is desired for conversation and information collection, can participate in the conversation group, enable appropriate information collection, and establish a place for communication suited to oneself. It will be easier to find. Also, the attribute information of the call group is stored in the group database 14, and the attribute information of this group is made public as group information. It is possible to know to some extent whether the group is a conversation group in which the conversation is being conducted, and it becomes easy to search and select a conversation group.
[0052]
When a plurality of IP telephone terminals 3 participate in the call group, the exchange control means 21 synthesizes voice signals received from the IP telephone terminals 3 belonging to the call group, and converts the synthesized signal to each of the call groups belonging to the call group. Exchange control is performed so that multi-call can be performed by outputting to the IP telephone terminal 3. At this time, if two IP telephone terminals 3 belong to the call group and make a call, a two-party call in which calls can be made at intervals similar to a general subscriber telephone is realized, and three or more IP telephone terminals 3 are included in the call group. If a call belongs to a group, the voices spoken by three or more parties are mixed in real time, and a multi-call is realized, in which the voices reach each talker at substantially the same time and all of them can talk at the same time.
[0053]
Here, the grouping control means 20 receives a user's selection input of disclosure or non-disclosure of a call group when generating a call group in response to a primary call request from the IP telephone terminal 3, and Can exchange a call group only when an open selection input is received, and can control the exchange control means 21 to enable a two-party call when an undisclosed selection input is received. By doing so, a user who does not want to disclose the call group can select and enter non-disclosure and make a primary call request, thereby enabling a two-party call without a third party. Such a two-party call can be performed by blocking connection from a terminal ID such as an IP address of the IP telephone terminal 3 that does not belong to the call group.
[0054]
The lower layer generating means 25 generates a lower layer based on the attribute information of the base station 2 stored in the base station database 15. Then, the grouping control unit 20 generates a call group between the IP telephone terminals 3 via the base station 2 belonging to the lower layer, and the exchange control unit 21 passes through the base station 2 belonging to the lower layer. Only the telephone call by the IP telephone terminal 3 is made possible.
[0055]
In this way, for example, when the base station 2 is installed in a particular restaurant chain store, a lower layer is formed by the base station 2 installed in the store of the chain store, It is also possible to limit the conversation to users at the chain store. By doing so, for example, an IP telephone service can be provided as part of the service to the customers of the chain store.
[0056]
In this case, it is also possible to give points to the IP telephone terminal 3 or the user who talks via the base station 2 forming the lower layer and give prizes or the like according to the acquired points. By doing so, for example, not only the IP telephone service but also the point service can be implemented as a part of the service to the customers of the chain store.
[0057]
Further, the grouping control means 20 authenticates the user ID input at the time of the call request from the IP telephone terminal 3 by comparing it with the data in the user database 13 to generate a call group or to participate in the call group. Can be controlled so as to enable. By doing so, it is possible to make a call only from a registered user, and to interrupt a call of an unregistered user. For example, an IP telephone server counts the call time for each user and charges each user. Alternatively, it is also possible to give points according to the talk time and give prizes or the like according to the acquired points.
[0058]
Further, the group database 14 further stores user information on a user who is using a telephone call using the IP telephone terminal 3 belonging to the call group, and the group disclosure means 23 includes the user information in the group information. May be made public. By doing so, the user information of the user who is actually talking is disclosed as group information, so that it is possible to understand to some extent what kind of conversation group the conversation is taking place, and search and selection of the conversation group Is easier to do.
[0059]
FIG. 3 is a system configuration diagram showing the IP telephone terminal 3.
[0060]
In the figure, 31 is hardware and 30 is a control unit. Reference numeral 37 denotes a terminal ID holding unit that holds a terminal ID such as an IP address assigned to each IP telephone terminal 3.
[0061]
The hardware 31 includes a transmission / reception control unit 32 that controls data transmission / reception when the base station 2 is connected to the wireless LAN. The transmission / reception control unit 32 has a routing control function. Even when a plurality of IP telephone terminals 3 are connected to one base station 2, a terminal ID such as an IP address is transmitted to the base station 2. Communication with the IP telephone server 1 is possible without rewriting to a base station ID (so-called global IP or the like). Note that the terminal ID is held in a terminal ID holding unit 37 which is a storage unit.
[0062]
The hardware 31 is provided with a microphone 33 and a speaker 34 for performing a telephone function and talking, and has a display unit 35 such as an LCD and an input unit such as an input button 36. The user can perform various data inputs and selection inputs with the input buttons 36 while watching the display on the display unit 35. Specifically, for example, a search condition is input when a call group is searched, and a search result is displayed. In addition, the user inputs a user ID at the time of a primary call request, and performs selection input of disclosure or non-disclosure of a group.
[0063]
The control unit 30 includes a display control unit 26, a call control unit 27, and a negotiation control unit 28.
[0064]
The negotiation control means 28 makes a call request (including both a “primary call request” and a “secondary call request”) made from the IP telephone terminal 3 to the IP telephone server 1 via the base station 2. In, negotiation control for establishing communication between the IP telephone terminal 3 and the IP telephone server 1 is performed. That is, the negotiation control means 28 makes a primary call request to the IP telephone server 1 and makes a secondary call request addressed to the open call group generated by the IP telephone server in response to the primary call request. Functions as a means.
[0065]
After the plurality of IP telephone terminals 3 have joined the call group and the multi-call state has been established, the call control means 27 transmits the voice data input from the microphone 33 or transmits the IP telephone server via the base station 2. Call control such as reproduction of the voice transmitted from 1 is performed.
[0066]
The display control means 26 has a browser function for browsing a web page, and displays necessary information when the IP telephone terminal 3 is connected to the IP telephone server 1 or during a call. Specifically, for example, at the time of a primary call request, an input screen of a user ID and an authentication screen are displayed, and a selection input screen of public / non-public of a terminal ID of a destination IP telephone terminal 3 and a call group is displayed. Display. In addition, when a secondary call is requested, a search screen and a search result of a call group are displayed, and a group ID input screen of a call group for which a secondary call request is to be made is displayed.
[0067]
The IP telephone terminal 3 is used in an IP telephone system that enables a telephone call with another IP telephone terminal 3 via the base station 2 and the IP telephone server 1. Multi-call with a plurality of IP telephone terminals 3 belonging to the call group becomes possible.
[0068]
Further, the IP telephone terminal 3 is provided with an interface (not shown) that is connected to a storage medium and can read and write data, and stores a user storage medium (not shown) in which user information including a user ID is stored. It is also possible to configure so that a call can be made by connecting to the interface. In this case, the IP telephone terminal 3 reads the user information in the user storage medium at the time of a call request and transmits it together with the terminal ID to the IP telephone server 1. The terminal ID and the user information received from the terminal 3 are reflected on the group database 14 and made public.
[0069]
By doing so, the user information of the user who is actually talking is disclosed as group information, so that it is possible to understand to some extent what kind of conversation group the conversation is taking place, and search and selection of the conversation group Is easier to do.
[0070]
The IP telephone terminal 3 connects to the IP telephone server 1 via the base station 2, browses the group information disclosed by the IP telephone server 1, and based on the disclosed group information, 3 to search for a call group. By doing so, the user can search for a conversation group whose content is desired for conversation and information collection, can participate in the conversation group, enable appropriate information collection, and establish a place for communication suited to oneself. It will be easier to find.
[0071]
In the IP telephone terminal 3, when the IP telephone terminal 3 makes a primary call request for generating a call group to the IP telephone server 1, the user inputs selection of disclosure or non-disclosure of the call group. It is becoming possible. By doing so, a user who does not want to disclose the call group can select and enter non-disclosure and make a primary call request, thereby enabling a two-party call without a third party.
[0072]
Also, when the IP telephone terminal 3 makes a primary call request for generating a call group from the IP telephone terminal 3 to the IP telephone server 1, the primary call request specifies the partner IP telephone terminal 3 It is possible to perform both a request for a call made by the user and a request for a call in a standby state in which the other party's IP telephone terminal 3 is not specified. By doing so, it is possible to generate a call group by a primary call request specifying the other party's IP telephone terminal 3, request a call in a standby state without specifying the other party's IP telephone terminal 3, It is also possible to generate a call group in a standby state for waiting for a user participating in a call.
[0073]
FIG. 4 is a system configuration diagram showing the base station 2.
[0074]
The base station 2 is connected to the Internet 4 and is connected to the IP telephone server 1 via the Internet 4 and a LAN transmitting / receiving section 42 for controlling communication when a plurality of IP telephone terminals 3 are wirelessly connected to the LAN. And a WAN-side transmitting / receiving unit 43 for controlling communication.
[0075]
Further, the base station 2 includes a control unit 40 having a communication relay control unit 44 and a data adding unit 45, and a base station ID holding unit 47 as a storage unit. The base station ID holding unit 47 stores a base station ID including an IP address assigned to each base station 2.
[0076]
The communication relay control means 44 relays data communication from the IP telephone terminal 3 to the IP telephone server 1 or data communication from the IP telephone server 1 to the IP telephone terminal 3, and performs route control and the like. In addition, for example, at the time of data communication from the IP telephone terminal 3 to the IP telephone server 1, the data adding means 45 adds the base station ID (IP address or the like) of the IP telephone terminal 3 to the base station ID of the relayed base station 2 (IP address or the like). (E.g., IP address).
[0077]
Thereby, the IP telephone server 1 can know through which base station the IP telephone terminal 3 that is making a telephone call is making a call, and the installation area and the attribute of the base station 2 stored in the base station database 15. By collating with data such as information, it is possible to ascertain information on a calling area, a store, a facility, and the like. These pieces of information are stored as group information in the group database 14 as needed, and are made public by the group publishing means 23.
[0078]
Next, an example of the basic operation of the above-described system which is the method of the present invention will be described with reference to the flowchart shown in FIG.
[0079]
In this example, a case will be described in which a primary call request for generating a call group is made by specifying the other party's IP telephone terminal 3B by the calling side IP telephone terminal 3A.
[0080]
First, the calling side IP telephone terminal 3A issues a primary call request for generating a call group. This primary call request is made by designating the IP address of the IP telephone server 1 or the like.
[0081]
At the time of this primary call request, initial operation of necessary data is performed by operating input button 36 in accordance with the display displayed on display unit 35 of originating IP telephone terminal 3A. As the initial input, data such as a user ID, a selection input of disclosure / non-disclosure of a call group, and a terminal ID of the other party's IP telephone terminal 3B are input. Here, as the terminal ID, for example, a telephone number set in one-to-one correspondence with the IP address of each IP telephone terminal 3 can be used. If the ID is set in one-to-one correspondence with the IP address, a character string or the like can be used instead of a telephone number.
[0082]
In this example, a case where “public” is selected in the selection input of public / non-public of the call group will be described. If the call group is disclosed, the attribute information of the group can be input as a part of the group information in this initial input. The attribute information of a call group refers to a category indicating what kind of content the call group has for conversation, such as “business and economy (stocks, mutual funds, employment, real estate…)”, Computer and Internet (hardware, software, Internet ...) "Health and Medicine (Illness, Symptoms, Nursing Care, Mental Health ...)""School and Education (Qualification Test, Test, Educational Site ...)""Arts and Humanities (Fashion, Architecture, literature, thought ...) "Science (biology, astronomy, social science ...)""Regional information (domestic, overseas ...)""Entertainment (entertainers, music, television, movies ...""Sports and leisure (travel, Outdoors, cars, motorcycles ...), hobbies (games, toys, mobile phones ...), encounters (generational, romance, marriage, regional) …) ”“ Life and culture (human relations, gourmet, holidays…) ”“ Home and dwelling (family, child care, gardening, pets…) ”“ Politics (election, law, tax, military…) ”“ News (domestic, "Overseas, topics ...)" and the like. The attribute information of the call group is stored in the group database 14 as group information in the IP telephone server 1, and the group disclosure means 23 Published by.
[0083]
When the initial input is completed, the input data is transmitted from the originating IP telephone terminal 3A by the operation of the negotiation control means 28, and a primary call request is made to the IP telephone server 1. This primary call request includes at least the user ID and the terminal ID stored in the terminal ID holding unit 37 of the IP telephone terminal 3. Needless to say, the address includes the address of the IP telephone server 1 to which the primary call request is connected, the terminal ID of the other party's IP telephone terminal 3B, and necessary data initially input.
[0084]
The primary call request is first transmitted to the base station 2A to which the calling IP telephone terminal 3A is connected to the wireless LAN, and data relay and route control are performed by the communication relay control means 44 of the base station 2A. 1 is transmitted. At the time of communication relay at the base station 2A, the base station ID is added to the data of the primary call request by the data adding means 45.
[0085]
In the IP telephone server 1, the negotiation control means 22 authenticates the user by comparing the user ID of the received primary call request with the data stored in the user database 13. When the user authentication is completed, a new call group is generated by the grouping control means 20. When a call group is newly created, a group ID is given to the call group, and the call group is newly stored and registered in the group database 14. The group database 14 includes, in addition to the attribute information of the group input in the initial input, the terminal IDs of the IP telephone terminals 3 belonging to the call group (at this stage, only the originating IP telephone terminal 3A), A base station ID of the base station through which the IP telephone terminal 3 has been connected, base station information including the installation location of the base station 2 and attribute information are stored as a database.
[0086]
Further, user information of a user who is making a call using the IP telephone terminal 3 belonging to the call group can also be stored in the group information. Of these pieces of information, the data already stored in the user database 13, the base station database 15, and the terminal database 16 of the database 12 may store a copy of the data, or copy the data to the already stored data. A link may be stored.
[0087]
As described above, when the call group is registered, "public" of the call group has been selected in this example, so that the group information is disclosed by the group disclosure means 23. The disclosure of the group information can be performed by posting the information on a web page that can be browsed by the browser of the IP telephone terminal 3, for example. Specifically, by posting higher-level categories such as "Business and Economics", "Computers and the Internet", "Health and Medicine", "Schools and Education", "Arts and Humanities" ... and selecting the above categories "Stock, Mutual Fund, Employment, Real Estate ...", "Hard, Soft, Internet ...", "Illness, Symptoms, Nursing Care, Mental Health ...", "Qualification Examination, Test, Educational Site ...", "Fashion, Architecture, Literature, When the screen proceeds to a screen where a lower category such as "thought ..." can be selected, and finally a desired call group is selected, the call group can be disclosed in such a format that the group information of the call group can be viewed.
[0088]
In addition, by inputting an arbitrary keyword, a desired call group can be searched and extracted by the search engine 24, and the call group can be disclosed in such a format that the group information of the extracted call group can be browsed. As the keyword at this time, for example, the area where the base station 2 is installed, the type of facility (what kind of facility such as a restaurant, a station, or a public facility is installed), and the above category are searched as keywords. be able to.
[0089]
When the disclosure of the call group is completed, a connection request is made from the IP telephone server 1 to the partner IP telephone terminal 3B designated as the partner at the time of the primary call request. This connection request is made via the base station 2B to which the other party's IP telephone terminal 3B is connected by wireless LAN. The connection request includes at least a group ID of a call group generated in response to the primary call request.
[0090]
Upon receiving the connection request in the other party's IP telephone terminal 3B, the negotiation control means 28 transmits a connection acknowledgment, which is a secondary call request for joining the call group that has made the connection request. The connection approval (secondary call request) is made to the IP telephone server 1 via the base station 2B to which the partner IP telephone terminal 3B is connected by wireless LAN. The connection approval (secondary call request) includes the group ID of the call group to which the connection request has been made and the terminal ID of the other party's IP telephone terminal 3B that performs connection approval (secondary call request). A base station ID is added to the passing base station 2B.
[0091]
In the IP telephone server 1, upon receiving the connection approval (secondary call request), the grouping control means 20 causes the other party's IP telephone terminal 3B which has performed the connection approval (secondary call request) to accept the connection (secondary call request). ) Is controlled so as to join the call group of the group ID included in the group. By joining the other party's IP telephone terminal 3B to the call group, the terminal ID of the joined other party's IP telephone terminal 3B, the base station ID and base station information of the base station 2B through which the other party's IP telephone terminal 3B has passed, User information and the like are stored in the group database 14, and the group information is updated. The updated group information is made public with the updated content.
[0092]
Then, the exchange control means 21 combines the voice signals received from the IP telephone terminals 3A and 3B belonging to the above-mentioned call group, and outputs the combined signal to each of the IP telephone terminals 3A and 3B belonging to the above-mentioned talk group. Exchange control is performed to enable telephone calls. In this state, although two IP telephone terminals 3A and 3B belong to the call group and are in a two-party call state, the call group is open to the public via the Internet 4 and therefore participates in the open call group. If there is a secondary call request that specifies the call group from the user who wants to do so, participation in the call group is performed by the same operation as described above, and a three-way call is performed. Similarly, if the number of participants increases, the voices spoken by the three or more parties are mixed, and reach the respective parties at the same time, thereby realizing a multi-call in which all the parties can talk at the same time.
[0093]
Although the number of participants who belong to the call group and increase or decrease, the group database 14 is updated each time, and the group publishing unit 23 publishes the updated group information of the call group. Then, when the number of the IP telephone terminals 3 belonging to the call group and making a call becomes 0, the grouping control means 20 deletes the call group and deletes the data from the group database 14.
[0094]
FIG. 6 shows a second example of the basic operation of the above system which is the method of the present invention. In this example, a case will be described in which a primary call request for generating a call group is made in a standby state in which the other party's IP telephone terminal 3B is not specified by the calling side IP telephone terminal 3A.
[0095]
In this case, the operation is performed in the same procedure as in the example described with reference to FIG. 5 until the group is opened, except that in the initial input, a primary call request is made by selecting and inputting a standby state in which the other party's IP telephone terminal 3B is not specified. It is.
[0096]
Then, when the call group is released, the other party's IP telephone terminal 3B is connected to the IP telephone server 1 via the base station 2B and, as described above, calls the category by browsing the category and searching by the search engine 24. View group information for a group. Then, when there is a call group that the user wants to join, the group ID of the call group is input or selected, and a secondary call request for requesting participation in the call group is made. This secondary call request is made to IP telephone server 1 via base station 2B. Also, the secondary call request includes the group ID of the call group for which participation is requested and the terminal ID of the IP telephone terminal 3B that has made the secondary call request, and the base station ID when passing through the base station 2B. Will be added.
[0097]
In the IP telephone server 1, upon receiving the secondary call request, the grouping control means 20 joins the other party's IP telephone terminal 3B which has made the secondary call request to the call group of the group ID included in the secondary call request. Control to make it work. By joining the other party's IP telephone terminal 3B to the call group, the terminal ID of the other party's IP telephone terminal 3B, the base station ID and base station information of the base station 2B through which the terminal has joined, User information and the like are stored in the group database 14, and the group information is updated. The updated group information is made public with the updated content.
[0098]
Then, the switching control means 21 synthesizes voice signals received from the IP telephone terminals 3 belonging to the above-mentioned call group, and outputs the synthesized signal to each of the IP telephone terminals 3 which belong to the relevant call group, thereby enabling multi-call. Exchange control to realize multi-call.
[0099]
The number of participants who belong to the call group and make calls increases or decreases, but each time the group database 14 is updated, the group publishing unit publishes the updated group information of the call group. Then, when the number of the IP telephone terminals 3 belonging to the call group and talking becomes zero, the grouping control means 20 deletes the call group and deletes data from the group database 14.
[0100]
FIG. 7 is a schematic diagram illustrating a state of an IP phone made via IP phone server 1 by the method described above. The base station 2 is not shown. Gr1 to Gr3 are open call groups, respectively, and a plurality of IP telephone terminals 3 belong to the call group and perform multi-call. Gr4 is a closed call group, in which two-party calls are performed. Reference numeral 3f denotes an IP telephone terminal not belonging to any of the call groups, browses the call groups Gr1 to Gr3 disclosed as described above, and makes a secondary call request with the desired call group as a destination. Thus, the user can join the call group and participate in the multi-call.
[0101]
FIG. 8 is a schematic diagram illustrating a state in which a lower layer is formed and an IP telephone call is made.
[0102]
In this example, a plurality of base stations 2 form a lower layer UL. Although the base stations 2 forming the lower layer UL are arranged collectively for convenience of explanation in the figure, they are not necessarily arranged in the same area. Then, the communication groups Gr1 to Gr3 are formed by the IP telephone terminals 3 that can communicate with the base station 2 belonging to the lower layer UL.
[0103]
The IP telephone terminals 3 belonging to the same call groups Gr1 to Gr3 may be connected to the IP telephone server 1 via different base stations 2 as long as they are base stations 2 belonging to the lower layer UL. Each of the call groups Gr1 to Gr3 is disclosed only in the lower layer UL, and only the IP telephone terminal 3 in the lower layer UL can participate in each of the call groups Gr1 to Gr3. In this way, a multi-call can be performed by the IP telephone terminals 3 belonging to each of the call groups Gr1 to Gr3.
[0104]
Of course, in the IP telephone terminal 3 via each base station 2 other than the lower layer UL, a communication group as described with reference to FIG. 7 is formed, and multi-communication is performed in each communication group. Also, a plurality of lower layers UL as described above can be formed.
[0105]
In the above embodiments, a mobile phone terminal type terminal device is used as the IP phone terminal 3 that can wirelessly communicate with the base station 2. However, the present invention is not limited to this. A terminal (PDA) or a computer device may be used. Further, in each of the above embodiments, an example has been described in which wireless communication is performed between the base station 2 and the IP telephone terminal 3, but wired communication may be employed. Further, in each of the above embodiments, the IP telephone server 1 can perform a multi-call with a general subscribed telephone by the IP connection with the telephone terminal of the general subscribed telephone. The purpose is to include the telephone terminal of the subscribed telephone. In this case, as the base station 2, a web server having a gateway for connecting general subscriber telephones to the Internet is used.
[0106]
As described above, according to the present invention, a call group capable of performing multi-calls with a plurality of IP telephone terminals 3 is generated and made public so that the IP telephone terminals 3 can view the call groups. Even three parties can see what call groups are currently talking. Then, in response to a secondary call request addressed to the disclosed call group from the IP telephone terminal 3, the IP telephone terminal 3 that has made the secondary call request joins the call group to enable multi-call. . For this reason, it is possible to make a secondary call request to the interested call group among the browsed call groups, listen to the contents of the conversation there, and participate in the conversation because the contents are interesting. In this way, active communication participation, which was impossible with the conventional IP telephone system, becomes possible.
[0107]
The method of providing the IP telephone service is mainly executed by a program running on the IP telephone server 1, and such a program is provided by being recorded on a recording medium such as a CD-ROM or distributed via a computer network. Can be provided.
[0108]
【The invention's effect】
As described above, according to the present invention, a call group capable of performing multi-calls by a plurality of IP telephone terminals is generated and made public so that the IP telephone terminals can view the call groups. But you can see what call groups are currently talking. Then, in response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, the IP telephone terminal that has made the secondary call request joins the call group to enable multi-call. For this reason, it is possible to make a secondary call request to the interested call group among the browsed call groups, listen to the contents of the conversation there, and participate in the conversation because the contents are interesting. In this way, active communication participation, which was impossible with the conventional IP telephone system, becomes possible.
[Brief description of the drawings]
FIG. 1 is a diagram showing a peripheral structure of a system of the present invention.
FIG. 2 is a system configuration diagram showing an IP telephone server.
FIG. 3 is a system configuration diagram showing an IP telephone terminal.
FIG. 4 is a system configuration diagram showing a base station.
FIG. 5 is a flowchart showing a first example of the method of the present invention.
FIG. 6 is a flowchart showing a second example of the method of the present invention.
FIG. 7 is a schematic diagram showing a state of a call group.
FIG. 8 is a schematic diagram showing a state of a lower layer.
[Explanation of symbols]
Gr1 call group
Gr2 call group
Gr3 call group
Gr4 call group
UL Lower layer
1 IP phone server
2 base stations
2A base station
2B base station
3 IP phone terminals
3A Calling side IP telephone terminal
3B IP telephone terminal of the other party
3f IP telephone terminal
4 Internet
10 control unit
11 Transmission / reception control unit
12 Database
13 User database
14 Group Database
15 Base station database
16 terminal database
19 Database management means
20 Grouping control means
21 Exchange control means
22 Negotiation control means
23 Group publication means
24 Search Engine
25 Lower layer generation means
26 display control means
27 Call control means
28 Negotiation control means
30 control unit
31 Hardware
32 transmission / reception control unit
33 microphone
34 speakers
35 Display
36 Input button
37 Terminal ID holding unit
40 control unit
42 LAN side transceiver
43 WAN side transceiver
44 Communication relay control means
45 Data addition means
47 base station ID holding unit

Claims (11)

An IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and an IP telephone terminal capable of communicating with the base station; An IP telephone system which enables calls between IP telephone terminals via
The above IP telephone server,
Grouping control means for generating, in response to a primary call request from an IP telephone terminal, a call group capable of performing multi-calls with a plurality of IP telephone terminals, assigning a group ID to the generated call group, and registering the generated call group in a group database;
Exchange control means for performing exchange control so as to enable multi-call by synthesizing voice signals received from the IP telephone terminals belonging to the call group and outputting the synthesized signal to each IP telephone terminal belonging to the call group;
Group publishing means for publishing the call group registered in the group database so that the call group can be browsed by an IP telephone terminal connectable via each base station,
In response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, the grouping control means allows the IP telephone terminal that has made the secondary call request to join the call group and perform a multi-call. An IP telephone system characterized by performing control as follows. The above IP telephone server,
A terminal database in which a terminal ID assigned to each IP telephone terminal is stored;
A base station ID that is assigned to each base station, and a base station database that stores base station information including attribute information of the installation area and the installation location of each base station,
The group database includes the generated group ID of the call group, the terminal ID of the IP telephone terminal belonging to the call group, the base station ID of the base station to which the IP telephone terminal belonging to the call group is connected, and the like. Group information is further stored,
The group publishing means publishes group information stored in the group database,
2. The IP telephone system according to claim 1, further comprising a search engine for enabling a search for a call group by the IP telephone terminal based on the group information disclosed. In the above IP telephone server,
The grouping control means, when generating a call group in response to a primary call request from the IP telephone terminal, accepts a user's selection input of disclosure or non-disclosure of the call group,
The group publishing means publishes the call group only when a publishing selection input is received,
3. The IP telephone system according to claim 1, wherein, when a secret selection input is received, said exchange control means performs control so as to enable two-party communication. The above IP telephone server,
Further comprising lower layer generating means for generating a lower layer based on the attribute information of the base station stored in the base station database,
The grouping control means generates a call group between IP telephone terminals via a base station belonging to the lower layer,
The IP telephone system according to any one of claims 1 to 3, wherein said exchange control means enables only a telephone call by an IP telephone terminal via a base station belonging to said lower layer. The above IP telephone server,
A user database storing user information including a user ID of a user registered to make an IP phone call using the IP phone terminal;
The grouping control means authenticates a user ID input at the time of a call request from an IP telephone terminal and generates a call group or enables participation in the call group. 5. The IP telephone system according to claim 4. The IP telephone terminal is configured to be able to communicate by connecting a user storage medium storing user information including a user ID, read user information in the user storage medium at the time of a call request, and read the IP together with the terminal ID. It is to be sent to the telephone server,
6. The IP telephone system according to claim 5, wherein the IP telephone server reflects the terminal ID and user information received from the IP telephone terminal in a group database and makes the terminal database public. The group database further stores user information on a user who is talking using an IP telephone terminal belonging to the call group,
6. The IP telephone system according to claim 5, wherein said group publishing means publishes said user information included in group information. 8. The method according to claim 1, wherein the primary call request includes a request for a call specifying the other party's IP telephone terminal and a request for a call in a standby state without specifying the other party's IP telephone terminal. The IP telephone system according to the item. An IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and an IP telephone terminal capable of communicating with the base station; An IP telephone server used in an IP telephone system that enables a telephone call between IP telephone terminals via the Internet.
The above IP telephone server,
Grouping control means for generating, in response to a primary call request from an IP telephone terminal, a call group capable of performing multi-calls with a plurality of IP telephone terminals, assigning a group ID to the generated call group, and registering the generated call group in a group database;
Exchange control means for performing exchange control so as to enable multi-call by synthesizing voice signals received from the IP telephone terminals belonging to the call group and outputting the synthesized signal to each IP telephone terminal belonging to the call group;
Group publishing means for publishing the call group registered in the group database so that the call group can be browsed by an IP telephone terminal connectable via each base station,
In response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, the grouping control means allows the IP telephone terminal that has made the secondary call request to join the call group and perform a multi-call. An IP telephone server characterized by performing control as follows. An IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and an IP telephone terminal capable of communicating with the base station; A method for providing an IP telephone service that enables a telephone call between IP telephone terminals through
A grouping step of generating, in response to a primary call request from an IP telephone terminal, a call group capable of performing multiple calls by a plurality of IP telephone terminals, assigning a group ID to the generated call group, and registering the generated call group in a group database;
An exchange control step of performing exchange control so as to enable a multi-call by synthesizing a voice signal received from an IP telephone terminal belonging to the call group and outputting the synthesized signal to each IP telephone terminal belonging to the call group;
A call group publishing step of publishing the call group registered in the group database so that the call group can be browsed by an IP telephone terminal connectable via each base station;
In response to a secondary call request addressed to the disclosed call group from the IP telephone terminal, control is performed so that the IP telephone terminal that has issued the secondary call request joins the call group to enable multi-call. A method for providing an IP telephone service. An IP telephone server provided on the Internet, a base station capable of communicating with the IP telephone server via the Internet, and an IP telephone terminal capable of communicating with the base station; An IP telephone terminal used in an IP telephone system that enables a call between the IP telephone terminals through
Means for making a primary call request to the IP telephone server;
Means for making a secondary call request addressed to the call group generated and published by the IP telephone server in response to the primary call request,
The IP telephone terminal, wherein the secondary call request enables a multi-call with a plurality of IP telephone terminals belonging to the call group.

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