JP2004282508A - Internet protocol telephone communication system and internet protocol telephone terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an IP (Internet protocol) telephone communication system capable of automatically recognizing the IP address of an opposite party to establish IP telephone communication by IP telephone terminals connected to an automatic allocation IP address system provider without preparing a VoIP (voice over Internet protocol) gateway, a VoIP gatekeeper, or the like. <P>SOLUTION: In this IP telephone communication system in which communication is performed between the IP telephone terminals connected by a communication line, after the IP telephone terminals 100 and 200 establish a link to a communication line 300, an IP address automatically allocated by the automatic allocation IP address system is automatically transmitted to the IP telephone terminal of the opposite party by e-mail, the IP telephone terminal of the opposite party which has received the e-mail associates the telephone number of an IP telephone terminal that has transmitted the e-mail with an IP address and with an e-mail address and automatically registers the telephone number in a table 400, and the IP telephone terminals perform IP telephone communication by using the IP address of the IP telephone terminal of the opposite party registered in the table. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an IP telephone communication system via an ADSL line, and more particularly to an IP telephone communication system and an IP telephone terminal that enable inexpensive IP telephone communication between IP telephone terminals.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a method for establishing IP telephone communication in an IP telephone communication system, a method using a VoIP (Voice over IP) gateway and a VoIP gate keeper is used.
[0003]
The VoIP gateway queries the VoIP gate keeper from the destination telephone number entered by the caller as to which VoIP gateway on the IP network the telephone number is ahead of. In response to the inquiry, the VoIP gate keeper returns the IP address of the VoIP gateway based on the correspondence table of telephone numbers belonging to each VoIP gateway. As a result, the IP address of the other party can be known from the other party's telephone number, and the calling party establishes IP telephone communication with the called party via the VoIP gateway.
[0004]
As another method of establishing IP telephone communication, there is a method of directly establishing IP telephone communication between IP telephone terminals by using an IP address from one IP telephone terminal to another IP telephone terminal registered in advance.
[0005]
As a conventional IP telephone communication system, for example, Japanese Unexamined Patent Application Publication No. 2001-308910 (Patent Document 1) discloses an IP telephone connected to a provider of an automatically assigned IP address method in IP telephone communication via an ADSL line. There has been disclosed a technology that enables IP telephone communication by automatically recognizing a destination IP address between terminals.
[0006]
[Patent Document 1]
JP 2001-308910 A
[Problems to be solved by the invention]
However, in an IP telephone communication system that requires a VoIP gateway and a VoIP gate keeper as described above, a dedicated VoIP gateway and a VoIP gate keeper are required, and cost is a major problem in preparing an infrastructure.
[0008]
Also, in an IP telephone communication system in which direct communication is performed between IP telephone terminals, it is necessary to register the IP address of the other party in advance, so that it is necessary to use a fixed IP address. In this case, the destination IP address changes each time a connection is made. As a result, the IP telephone communication is not available for a user who has a contract with a provider adopting the automatic IP address system without knowing the destination IP address. There is a problem that it cannot be established.
[0009]
Further, according to the technology disclosed in Patent Document 1, the IP telephone terminal connected to the provider of the automatic assignment IP address method automatically recognizes the IP address of the other party to enable IP telephone communication. However, it is assumed that the IP telephone terminal is always connected to the line, and when the IP telephone terminal of the other party is not activated, the call request is notified to the other party. Requires a gatekeeper to manage the IP address of the server. Therefore, there is a problem that a gate keeper is required in the same manner as described above, so that the cost is high and that the IP telephone terminal cannot automatically recognize the destination IP address and perform IP telephone communication.
[0010]
A main object of the present invention is to automatically recognize a destination IP address between IP telephone terminals connected to a provider of an automatically assigned IP address system without preparing a VoIP gateway, a VoIP gate keeper, or the like, and perform IP telephone communication. It is an object of the present invention to provide an IP telephone communication system and an IP telephone terminal which can establish the IP telephone system.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an IP telephone communication system in which a telephone call is made between IP telephone terminals connected by a communication line. The IP telephone terminal that automatically transmits, by e-mail, an IP address that has been dynamically assigned to the other party's IP telephone terminal, and sends the e-mail at the other party's IP telephone terminal that has received the e-mail. Automatically registering the telephone number, the IP address, and the e-mail address in the table in association with each other, and performing the IP telephone communication using the IP address of the destination IP telephone terminal registered in the table. Features.
[0012]
The IP telephone communication system according to claim 2, wherein the IP telephone terminal stores the table for registering the telephone number, the IP address, and the e-mail address of the partner IP telephone terminal in association with each other; A communication control unit for controlling the IP telephone communication based on the IP address of the registered destination IP telephone terminal, and an IP address automatically allocated by the automatic allocation IP address method after the link to the communication line is established; And a mail notifying unit for automatically transmitting the IP telephone terminal by electronic mail.
[0013]
4. The IP telephone communication system according to claim 3, wherein the mail notification unit sends an IP address automatically assigned by an automatic assignment IP address method to a destination IP telephone terminal registered in the table in advance. It is characterized by transmission by e-mail.
[0014]
The IP telephone communication system according to claim 4, wherein the IP telephone terminal that has received the electronic mail analyzes the contents of the electronic mail and sends an IP address notification from an IP telephone terminal that is a partner of the IP telephone communication. Reading the IP address in the e-mail, and automatically registering the read IP address in a table of the data storage unit.
[0015]
6. The IP telephone communication system according to claim 5, wherein the communication control unit analyzes the dialed telephone number, and when the telephone number matches the telephone number of the destination IP telephone terminal registered in the table, IP telephone communication is performed by directly transmitting voice data to the destination IP telephone terminal using the IP address registered in the table.
[0016]
According to a sixth aspect of the present invention, in an IP telephone terminal for performing IP telephone communication via a communication line, after establishing a link to the communication line, an IP address automatically assigned by an automatic assignment IP address method is transmitted to a destination. Automatically transmitted by e-mail to the IP telephone terminal, received an e-mail from the destination IP telephone terminal, and received the telephone number, IP address and e-mail address of the IP telephone terminal that transmitted the e-mail. Are registered in a table in association with each other, and IP telephone communication is performed using the IP address of the destination IP telephone terminal registered in the table.
[0017]
8. The IP telephone terminal according to claim 7, wherein the data storage unit stores the table for registering the telephone number, the IP address, and the e-mail address of the partner IP telephone terminal in association with each other, and the IP address of the partner registered in the table. A communication control unit for controlling IP telephone communication based on the IP address of the telephone terminal, and, after establishing a link to the communication line, an IP address automatically allocated by an automatic allocation IP address method to the partner IP telephone terminal. A mail notification unit that automatically transmits the electronic mail.
[0018]
9. The IP telephone terminal according to claim 8, wherein the mail notification unit sends the IP address automatically assigned by the automatic assignment IP address method to the other party's IP telephone terminal registered in the table in advance by e-mail. It is characterized by transmitting.
[0019]
The IP telephone terminal according to claim 9, wherein the IP telephone terminal that has received the electronic mail analyzes the contents of the electronic mail and sends an IP address notification from an IP telephone terminal that is a partner of the IP telephone communication. An IP address in the electronic mail is read, and the read IP address is registered in a table of a data storage unit.
[0020]
11. The IP telephone terminal according to claim 10, wherein the communication control unit analyzes the dialed telephone number and registers the telephone number in the table when the telephone number matches the telephone number of the IP telephone terminal registered in the table. IP telephone communication is performed by directly transmitting voice data to the destination IP telephone terminal using the specified IP address.
[0021]
According to the present invention, when a user attempts to make a call using an IP telephone terminal, it is determined whether or not the IP address of the destination IP telephone terminal is registered in the data storage unit based on the dialed telephone number. If the dial destination is a call to a pre-registered IP telephone terminal, the call is not made to the dial using an analog line with a normal telephone number, but to the destination IP telephone terminal using an IP address. By transmitting audio data directly, IP telephone communication becomes possible.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an IP telephone communication system according to a preferred embodiment of the present invention.
[0023]
Referring to FIG. 1, an IP telephone communication system according to an embodiment of the present invention includes one IP telephone terminal 100 and another IP telephone terminal 200, which are connected to each other by an ADSL line 300. Although FIG. 1 shows a case where two IP telephone terminals are provided for convenience, the present invention can be similarly applied to a case where two or more IP telephone terminals are connected.
[0024]
The IP telephone terminal 100 controls the IP telephone communication and establishes a link with the ADSL line 300 and exchanges data with the communication control unit 102 that converts audio data between analog data and digital data. An ADSL line interface unit 101, an analog unit 103 for performing gain control and the like of analog audio data, a microphone unit 104 for collecting voice of transmitted voice, a speaker unit 105 for amplifying voice of received voice, and a communication partner. A mail notification unit 106 that notifies the IP telephone terminal 200 of its own IP address by e-mail; a data storage unit 107 that stores a table in which the telephone number of the IP telephone terminal, the IP address, and the e-mail address are registered in association with each other. It has.
[0025]
Similarly, the other IP telephone terminal 200 controls the IP telephone communication, establishes a link between the communication control unit 202 that converts voice data between analog data and digital data, and the ADSL line 300. ADSL line interface section 201 for exchanging data and data, analog section 203 for performing gain control and the like of analog voice data, microphone section 204 for collecting voice of transmitted voice, and speaker section 205 for amplifying voice of received voice. A mail notification unit 206 for notifying the IP telephone terminal 100 of the communication partner of its own IP address by e-mail, and a table in which the telephone number of the IP telephone terminal, the IP address, and the e-mail address are registered in association with each other are stored. A data storage unit 207.
[0026]
Hereinafter, the operation of the IP telephone communication system according to the present embodiment configured as described above will be described with reference to FIGS. FIG. 2 is a flowchart showing a processing operation when the IP telephone communication system according to the embodiment of the present invention automatically recognizes an IP address of a communication partner and establishes an IP telephone communication.
[0027]
The IP telephone terminal 100 connected to the ADSL line 300 starts training of the ADSL line 300 by the ADSL line interface unit 101 and establishes a link of the ADSL line (step S101 in FIG. 2).
[0028]
Subsequently, the IP telephone terminal 100 logs in to the provider server by the communication control unit 102 (step S102).
[0029]
Thereby, the IP telephone terminal 100 acquires an IP address by automatic IP address assignment of the provider server (step S103).
[0030]
After obtaining the IP address, mail notification section 106 of IP telephone terminal 100 checks table 400 registered in data storage section 107 in advance to perform IP telephone communication (step S104).
[0031]
This table 400 is an address list in which telephone numbers, e-mail addresses, and IP addresses of IP telephone terminals, which are partners of the IP telephone communication, are registered in advance, and correspond to a telephone directory on a general line.
[0032]
The telephone number and e-mail address of the partner IP telephone terminal in table 400 are registered in advance by the user of the IP telephone terminal. The IP address is automatically acquired by a processing operation described later and registered in the table 400.
[0033]
An example of this table 400 is shown in FIG. As shown in the figure, the telephone number, the e-mail address, and the IP address are registered in the table 400 for each IP telephone terminal with which the IP telephone communication is performed.
[0034]
If IP telephone terminal 200, which is the partner of the IP telephone communication, has been registered in the confirmed table in advance, mail notifying section 106 reads the registered e-mail address of IP telephone terminal 200, and reads its own IP telephone terminal. The telephone number, e-mail address, and acquired IP address of 100 are written as information in the e-mail, and the e-mail is automatically sent to the IP telephone terminal 200 (step S105). Thereafter, IP telephone terminal 100 enters a standby state (step S106).
[0035]
The mail notification unit 206 of the IP telephone terminal 200 inquires of the mail server at regular intervals whether an e-mail addressed to itself has arrived from the standby state (step S202) (step S202).
[0036]
When the e-mail has arrived, the e-mail notification unit 206 of the IP telephone terminal 200 automatically receives the e-mail from the mail server (step S203). In this case, if it is refused to receive all e-mails arriving due to concerns such as unsolicited e-mails and virus e-mails, it is desirable to restrict the title (SUBJECT) and the sender in advance, thereby requesting IP telephone communication. Only the electronic mail from the IP telephone terminal may be automatically received.
[0037]
Then, mail notifying section 206 determines whether the received e-mail is an e-mail from IP telephone terminal 100 (step S204), and the received e-mail is transmitted from IP telephone terminal 100 registered in data storage section 207 in advance. If it is a mail, the IP telephone terminal 200 reads the telephone number, e-mail address, and IP address of the IP telephone terminal 100 from the content of the received e-mail, and automatically reads the data read into the table 400 of the data storage unit 207. Register (step S205).
[0038]
When the telephone number and the e-mail address of the IP telephone terminal 100 are registered in the table 400 of the data storage unit 207 of the IP telephone terminal 200, the notification is made by e-mail in the column corresponding to the IP telephone terminal 100. Update the table by registering the IP address.
[0039]
As described above, even if a contract is made with a provider employing the automatic IP address assignment method, the assigned IP address is automatically notified to the IP telephone terminal of the other party by e-mail each time the connection is made. Then, the notified IP telephone terminal automatically registers its IP address in association with the IP telephone terminal.
[0040]
The operation so far is a case where an e-mail is transmitted from the IP telephone terminal 100 to the IP telephone terminal 200. Conversely, when an e-mail is transmitted from the IP telephone terminal 200 to the IP telephone terminal 100, The telephone number, e-mail address, and IP address sent from the IP telephone terminal 200 by e-mail are registered in the table of the data storage unit 107 of the IP telephone terminal 100.
[0041]
When the user dials the telephone number of the IP telephone terminal 100 to make a call from the IP telephone terminal 200 to the IP telephone terminal 100, the communication control unit 202 of the IP telephone terminal 200 uses the telephone number dialed by the user. A search is made for a table stored in the data storage unit 207 to confirm whether the IP address of the destination IP telephone terminal 100 is registered.
[0042]
When the IP address of the other party's IP telephone terminal 100 is registered, the communication control unit 202 of the IP telephone terminal 200 does not make a dial call using an analog line with a normal telephone number, but stores it in a table of the data storage unit 207. The voice data is directly transmitted to the destination IP telephone terminal 100 using the registered IP address (step S206).
[0043]
When the communication control unit 102 of the IP telephone terminal 100 receiving the voice data confirms that the received voice data is the IP telephone communication from the IP telephone terminal 200, the communication control unit 102 informs the user by means such as ringing a bell. , An IP telephone communication from the IP telephone terminal 200) is received (step S107).
[0044]
With the above operation, IP telephone communication is established between IP telephone terminal 100 and IP telephone terminal 200, and a telephone call is started (steps S108 and S207).
[0045]
In the IP telephone communication system according to the present embodiment, as described above, after establishing a link to the ADSL line, by logging in to the server of the provider, the IP address automatically assigned by the automatic assignment IP address method is stored in advance as data. The mail notification units 106 and 206 notify their IP addresses to the other party's IP telephone terminals registered in the storage units 107 and 207 by e-mail. Also, the IP telephone terminal that has received the e-mail reads the IP address of the partner IP telephone terminal from the information described in the e-mail, and stores the telephone number, the e-mail address, and the IP address of the IP telephone terminal in the data storage unit. It is registered in the tables of the data storage units 107 and 207. When making a call, if it is determined that the call is to be made to the other party's IP telephone terminal registered in advance in the data storage units 107 and 207, an IP address is used instead of a dial call using an analog line using a normal telephone number. Then, the voice data is directly transmitted to the other party's IP telephone terminal, thereby enabling the IP telephone communication. As a result, without preparing a VoIP gateway, a VoIP gate keeper, or the like, it is possible to automatically recognize a destination IP address and establish IP telephone communication between an IP telephone terminal connected to a provider of an automatically assigned IP address system. Will be able to
[0046]
The functions of the communication control unit and the mail transmission unit, which are the components of the IP telephone terminal of the IP telephone communication system according to the present invention, are implemented not only by hardware but also by executing the functions of the above-described units. It can also be realized by loading the IP telephone communication program (application program) into the memory of the computer processing device and controlling the computer processing device. This IP telephone communication program is stored in a magnetic disk, a semiconductor memory, or another recording medium, loaded from the recording medium into a computer processing device, and controls the operation of the computer processing device to realize the above-described functions.
[0047]
Although the present invention has been described with reference to the preferred embodiments and examples, the present invention is not necessarily limited to the above embodiments and examples, and various modifications may be made within the scope of the technical idea. Can be implemented.
[0048]
In the above-described embodiment, a system configuration having two IP telephone terminals has been described, but the present invention can be similarly applied to a configuration having two or more IP telephone terminals. Further, the system for performing IP telephone communication using the ADSL line has been described, but the present invention can be similarly applied to IP telephone communication using a high-speed line such as an optical fiber other than the ADSL line.
[0049]
【The invention's effect】
As described above, according to the IP telephone communication system of the present invention, after the IP telephone terminal establishes a link to the communication line, the IP address automatically allocated by the automatic IP address method is changed to the IP telephone of the other party. A table in which the telephone number, the IP address, and the e-mail address of the IP telephone terminal that transmitted the e-mail are associated with the destination IP telephone terminal that automatically transmitted the e-mail to the terminal and received the e-mail. Automatically by using the IP address of the other party's IP telephone terminal registered in the table, and performing IP telephone communication, without preparing a VoIP gateway or a VoIP gate keeper, etc. Automatically recognizes the destination IP address between the IP telephone terminals connected to It is possible to establish a telephone communication.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an IP telephone communication system according to a preferred embodiment of the present invention.
FIG. 2 is a flowchart illustrating an operation of establishing IP telephone communication in the IP telephone communication system according to the embodiment of the present invention.
FIG. 3 is a diagram showing a content example of a table of a data storage unit in the IP telephone communication system according to the embodiment of the present invention.
[Explanation of symbols]
100, 200: IP telephone terminal 101, 201: ADSL line interface unit 102, 202: communication control unit 103, 203: analog unit 104, 204: microphone unit 105, 205: speaker unit 106, 206: mail notification unit 107, 207 : Data storage unit 300: ADSL line 400: Table

Claims (10)

In an IP telephone communication system for making a call between IP telephone terminals connected by a communication line,
After establishing a link to the communication line by the IP telephone terminal, automatically transmitting an IP address automatically allocated by an automatic allocation IP address method to the destination IP telephone terminal by e-mail,
At the destination IP telephone terminal that has received the e-mail, the telephone number, IP address, and e-mail address of the IP telephone terminal that sent the e-mail are automatically registered in a table in association with each other,
An IP telephone communication system, wherein the IP telephone terminal performs IP telephone communication using an IP address of a destination IP telephone terminal registered in the table. The IP telephone terminal comprises:
A data storage unit that stores the table for registering the telephone number, IP address, and e-mail address of the partner IP telephone terminal in association with each other;
A communication control unit that controls IP telephone communication by the IP address of the destination IP telephone terminal registered in the table;
A mail notification unit that automatically sends an IP address automatically assigned by an automatic assignment IP address method to the destination IP telephone terminal by e-mail after establishing a link to the communication line. 2. The IP telephone communication system according to claim 1, wherein: The mail notification unit sends an IP address automatically assigned by an automatic assignment IP address method to a destination IP telephone terminal registered in the table in advance by e-mail. Item 3. The IP telephone communication system according to Item 2. The IP telephone terminal that has received the e-mail reads the IP address in the e-mail when it analyzes the contents of the e-mail and receives an IP address notification from the IP telephone terminal that is the partner of the IP telephone communication. 4. The IP telephone communication system according to claim 2, wherein the read IP address is automatically registered in a table of a data storage unit. The communication control unit analyzes the dialed telephone number and uses the IP address registered in the table when the telephone number matches the telephone number of the IP telephone terminal of the destination registered in the table. The IP telephone communication system according to any one of claims 2 to 4, wherein the IP telephone communication is performed by directly transmitting voice data to the destination IP telephone terminal. In an IP telephone terminal that performs IP telephone communication via a communication line,
After the link to the communication line is established, the IP address automatically assigned by the automatic assignment IP address method is automatically transmitted to the destination IP telephone terminal by e-mail,
Receiving an e-mail from the other party's IP telephone terminal, associating the telephone number, the IP address, and the e-mail address of the IP telephone terminal that sent the e-mail with the table,
An IP telephone terminal that performs IP telephone communication using the IP address of a destination IP telephone terminal registered in the table. A data storage unit that stores the table for registering the telephone number, IP address, and e-mail address of the partner IP telephone terminal in association with each other;
A communication control unit that controls IP telephone communication by the IP address of the destination IP telephone terminal registered in the table;
A mail notification unit that automatically transmits an IP address automatically assigned by an automatic assignment IP address method to the partner IP telephone terminal by e-mail after establishing a link to the communication line. The IP telephone terminal according to claim 6, wherein The method according to claim 1, wherein the mail notification unit notifies the IP address automatically assigned by the automatic assignment IP address method to an IP telephone terminal of the other party registered in the table in advance by e-mail. 8. The IP telephone terminal according to 7. The IP telephone terminal that has received the e-mail reads the IP address in the e-mail when it analyzes the contents of the e-mail and receives an IP address notification from the IP telephone terminal that is the partner of the IP telephone communication. 9. The IP telephone terminal according to claim 7, wherein the read IP address is registered in a table of a data storage unit. The communication control unit analyzes the dialed telephone number and, if the telephone number matches the telephone number of the IP telephone terminal registered in the table, uses the IP address registered in the table to communicate with the other party. The IP telephone terminal according to any one of claims 7 to 9, wherein IP telephone communication is performed by directly transmitting voice data to the previous IP telephone terminal.

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