JP2003250011A - Computer and method for providing extension speech connection service - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a computer and a method for providing extension speech connection service capable of simply establishing a private branch exchange network at a low cost. <P>SOLUTION: A reception section 13 receives extension speech connection request information sent from a caller IP phone terminal via an IP network and transmits the information to an IP address reception section 14. The IP address reception section 14 receives the extension speech connection request information sent from the reception section 13, reads a 'global IP address' corresponding to extension information of a called IP phone terminal included in the extension speech connection request information from an extension management table 12 of an IP address storage section 11 and transmits the 'global IP address' to a transmission section 17. The transmission section 17 receives the 'global IP address' sent from the IP address reception section 14 and corresponding to the extension information of the called IP phone terminal and the 'global IP address' of the caller IP phone terminal, and transmits the 'global IP address' of the called IP phone terminal to the caller IP phone terminal as information. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer and an extension call connection service providing method for realizing extension calls using the Internet Protocol (IP).

[0002]

2. Description of the Related Art Currently, as a private branch exchange, a PBX (privat
e branch exchange) or button telephone device (hereinafter, "P
BX etc.) is used. PBX and the like are popular in that no call charge is required for extension calls between telephones on the premises. Many of these PBXs and the like are used in facilities such as companies, schools and hospitals.

[0003]

However, in the operation management of such a private branch exchange using the PBX or the like, a specialized manager having knowledge of telephone communication is required. In addition, equipment operation management costs, equipment installation locations, and equipment purchase costs or rental costs are required. In addition, since it is generally operated for 24 hours, there is a big problem that the telephone becomes disconnected when a failure occurs.

The present invention has been made in view of the above points, and an object of the present invention is to provide a computer and an extension call connection service providing method capable of easily establishing a private branch exchange network at low cost.

[0005]

A computer according to the present invention is a computer in which a plurality of IP telephone terminals capable of extension calls are connected via an IP network.
The storage unit that stores the extension information and the IP address in association with each other for each of the plurality of IP telephone terminals, and I
When the extension information of the called IP telephone terminal transmitted via the P network is received, the IP corresponding to the extension information is received.
It is characterized by comprising an IP address reading means for reading an address from the storage means and a transmitting means for transmitting the IP address read by the IP address reading means to the originating IP telephone terminal.

Since the computer according to the present invention is provided with the storage means, the IP address reading means and the transmitting means, the receiving side I transmitted from the originating side IP telephone terminal via the IP network by the IP address reading means.
When the extension information of the P telephone terminal is received, the IP address corresponding to the extension information is read from the storage means. Then, the transmitting unit transmits the IP address read by the IP address reading unit to the originating IP telephone terminal. As a result, the sender IP to which the IP address is sent
Based on the IP address, the telephone terminal is placed in a state where it is possible to make an extension call with the called-side IP telephone terminal. As a result, the user can establish a private branch exchange network without purchasing or renting a device such as a PBX. In addition, the users of the private branch exchange network can operate and manage the private branch exchange network itself without allocating a specialized administrator.

A computer according to the present invention is a computer in which a plurality of IP telephone terminals capable of extension communication are connected via an IP network, and the extension information and the IP address are associated with each other for each of the plurality of IP telephone terminals. Storage means for storing and IP address reading means for reading the IP address corresponding to the extension information from the storage means when receiving the extension information of the receiving side IP telephone terminal transmitted from the calling side IP telephone terminal through the IP network. , Sending means for sending connection availability information to the called IP telephone terminal having the IP address read out by the IP address reading means, and callable information sent from the called IP telephone terminal sending the connection availability information Connection processing for connecting a call between the originating IP telephone terminal and the terminating IP telephone terminal It is characterized in that it comprises a stage, a.

Since the computer according to the present invention is provided with the storage means, the IP address reading means, the transmitting means and the call connection processing means, the IP address reading means transmits from the originating side IP telephone terminal through the IP network. When receiving the extension information of the called IP telephone terminal, the IP address corresponding to the extension information is read from the storage means, and the sending means has the called IP telephone terminal having the IP address read by the IP address reading means. The connection availability information is transmitted to. Then, when the call connection processing means receives the incoming call enable information transmitted from the incoming call side IP telephone terminal which has sent the connectability information, the outgoing call side I
The call between the P telephone terminal and the called IP telephone terminal is connected. As a result, the originating side IP telephone terminal and the terminating side IP telephone terminal are brought into a state where extension calls can be made via the computer. As a result, the user can establish a private branch exchange network without purchasing or renting a device such as a PBX. In addition, the users of the private branch exchange network can operate and manage the private branch exchange network itself without allocating a specialized administrator.

Further, when the browsing request information transmitted from the IP telephone terminal is received, the information reading means for reading the predetermined information stored in the storage means and the predetermined information read by the information reading means are browsed. It is preferable to further include an information transmitting means for transmitting the request information to the IP telephone terminal. With this configuration, the user of the IP telephone terminal can easily browse the predetermined information stored in the storage unit, and the operability of the IP telephone terminal by the user is significantly improved.

Further, it is preferable to further include setting registration means for setting and registering the predetermined information stored in the storage means when receiving the setting registration information transmitted from the IP telephone terminal. With such a configuration, the user of the IP telephone terminal can easily set and register the predetermined information stored in the storage means (for example, change, addition, deletion of registered contents), and The operability of the IP telephone terminal is significantly improved.

On the other hand, in the method for providing an extension call connection service according to the present invention, a plurality of IP telephone terminals capable of extension calls are
A method for providing an extension call connection service for connecting an extension call between a calling IP telephone terminal and a receiving IP telephone terminal using a computer connected via a P network, the method comprising: When the IP address reading means receives the extension information of the called IP telephone terminal transmitted from the calling IP telephone terminal via the IP network, the storage means stores the extension information and the IP address in association with each other. An IP address reading step of reading the IP address corresponding to the extension information from the storage means, and a sending step of the sending means sending the IP address read by the IP address reading means to the originating IP telephone terminal. Is characterized by.

In the extension call connection service providing method according to the present invention, the computer is provided with the IP address reading means and the transmitting means in addition to the storing means.
When receiving the extension information of the called IP telephone terminal transmitted through the P network, the IP address corresponding to the extension information is read from the storage means. Then, in the transmitting step, the IP address read in the IP address reading step is transmitted to the originating IP telephone terminal. As a result, the originating side IP telephone terminal to which the IP address is transmitted is brought into a state where it is possible to make an extension call with the terminating side IP telephone terminal based on the IP address. As a result, a private branch exchange network can be established without purchasing or renting equipment such as PBX. In addition, the users of the private branch exchange network can operate and manage the private branch exchange network itself without allocating a specialized administrator.

Further, in the method for providing an extension call connection service according to the present invention, a plurality of IP telephone terminals capable of extension calls are I
A method for providing an extension call connection service for connecting an extension call between a calling IP telephone terminal and a receiving IP telephone terminal using a computer connected via a P network, the method comprising: When the IP address reading means receives the extension information of the called IP telephone terminal transmitted from the calling IP telephone terminal via the IP network, the storage means stores the extension information and the IP address in association with each other. An IP address reading step of reading an IP address corresponding to the extension information from the storage means, and a transmitting means for transmitting connection availability information to the called IP telephone terminal having the IP address read by the IP address reading means. The step and the call connection processing means allow the incoming call transmitted from the IP telephone terminal on the receiving side that has transmitted the connection propriety information. Upon receiving the information, the originating IP
A call connection processing step for connecting a call between the telephone terminal and the IP telephone terminal on the receiving side.

In the extension call connection service providing method according to the present invention, the computer is provided with an IP address reading means, a transmitting means, and a call connection processing means in addition to the storing means. When the extension information of the receiving side IP telephone terminal transmitted from the IP telephone terminal via the IP network is received, the IP address corresponding to the extension information is read from the storage means,
In the transmitting step, the connection propriety information is transmitted to the terminating side IP telephone terminal having the IP address read in the IP address reading step. Then, in the call connection processing step, when the incoming call enable information transmitted from the incoming call side IP telephone terminal that has sent the connection propriety information is received, the call between the outgoing call side IP telephone terminal and the incoming call side IP telephone terminal is connected. It As a result, the originating side IP telephone terminal and the terminating side IP telephone terminal are brought into a state where extension calls can be made via the computer. As a result, the user can establish a private branch exchange network without purchasing or renting a device such as a PBX. In addition, the users of the private branch exchange network can operate and manage the private branch exchange network itself without allocating a specialized administrator.

In the present specification, the term "IP telephone terminal" means a protocol for voice transmission (for example, VoIP (Voice over Internet protoco).
l) etc.) is a terminal having a function for making a voice call via the Internet.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A computer and an extension call connection service providing method according to an embodiment of the present invention will be described with reference to the drawings. In the description, the same elements or elements having the same function will be denoted by the same reference symbols, without redundant description.

(First Embodiment) As shown in FIG. 1, a plurality of IP telephone terminals 5 capable of extension communication are connected to a computer 1 via an IP network 3.
Each of the IP telephone terminals 5 is physically configured as a computer system (for example, a personal computer) capable of voice communication using VoIP, an IP telephone, or the like. For example, each IP telephone terminal 5 connects the LAN to the IP network 3 via the server and the line connection terminal.
It is connected to the.

From each IP telephone terminal 5 (origination-side IP telephone terminal 5), an extension call connection including extension information of the called-side IP telephone terminal 5 and "global IP address" of the calling-side IP telephone terminal 5 when making a call The request information is packetized and transmitted. The extension information of the called IP telephone terminal 5 includes the “extension number” of the called IP telephone terminal 5. The “extension number” of the called IP telephone terminal 5 can be obtained by the user (caller) dialing the “extension number” of the called IP telephone terminal 5. The information transmitted from each IP telephone terminal 5 is transmitted to the computer 1 via the IP network 3. Voice data communication between the originating side IP telephone terminal 5 and the receiving side IP telephone terminal 5 is performed, for example, by the originating side I.
The analog voice input at the P telephone terminal 5 is A / D converted, compressed, packetized and transmitted, and the voice data packet received at the destination IP telephone terminal 5 is assembled, expanded, and D / D converted. This is performed by performing A conversion and reproducing analog voice.

The computer 1 is physically a CPU
The server system includes a (central processing unit), a memory, an input device such as a mouse and a keyboard, a display device such as a display, a storage device such as a hard disk, and a transmission / reception device such as a communication unit. As shown in FIG. 2, the computer 1 has, as functional components,
IP address storage unit 11 (storage means), reception unit 13, I
P address reading unit 14 (IP address reading), information reading unit 15 (information reading unit), setting registration unit 16 (setting registration unit), transmission unit 17 (transmission unit, information transmission unit)
And so on.

The IP address storage unit 11 stores extension information and IP addresses in association with each other for each of the plurality of IP telephone terminals 5, and has an extension management table 12. In the extension management table 12, as shown in FIG. 3, "group extension number", "extension number",
"Global IP address", "user", "group", "group name", and "telephone number" are stored and stored as data.

The "group extension number" is an extension number to be pressed when making an extension call to all the IP telephone terminals 5 included in the group. The "extension number" is an extension number to be pressed when making a direct extension call to each IP telephone terminal 5. The “global IP address” is an IP address registered and set for each IP telephone terminal 5, and in the present embodiment, is an IP address.
It is set according to v6. “User” is the IP
The name of the user of the telephone terminal 5 is registered. A group code such as a department code is registered in the "group". A group name such as a department name is registered in the "group name". The “telephone number” is an external telephone number of the IP telephone terminal 5.

The receiving unit 13 receives the extension call connection request information transmitted from each IP telephone terminal 5 (originating IP telephone terminal 5) via the IP network 3 and sends it to the IP address reading unit 14. Further, the browsing request information and the setting registration information are transmitted from each IP telephone terminal 5, and the receiving unit 13
Receives the browsing request information and the setting registration information, sends the browsing request information to the information reading unit 15, and sends the setting registration information to the setting registration unit 16.

The browsing request information is sent from each IP telephone terminal 5 to the I
Predetermined information stored in the extension management table 12 of the P address storage unit 11 (for example, "group extension number", "extension number", "user", "group name", etc.)
Is the information for requesting the browsing of the
The “global IP address” of the P telephone terminal 5 (calling side IP telephone terminal 5) is included. The setting registration information is information for setting registration (for example, new registration, registration change, registration deletion, etc.) of predetermined information stored in the extension management table 12 of the IP address storage unit 11 from each IP telephone terminal 5. Yes, IP telephone terminal 5 (caller I
The "global IP address" of the P telephone terminal 5), registration information, change information, and deletion information are included. The registration information includes “group extension number”, “extension number”, “global IP address”, “user”, “group”, “group name”, which is stored as data in the extension management table 12.
Includes "phone number". The change information includes data for changing the data stored in the extension management table 12. The deletion information includes a "global IP address" corresponding to the IP telephone terminal 5 whose data stored in the extension management table 12 should be deleted.

The IP address reading unit 14 is the receiving unit 13
The extension call connection request information sent from the extension call connection request information is received, the "global IP address" of the originating IP telephone terminal 5 included in the extension call connection request information is confirmed, and if the "global IP address" is appropriate, the extension The "global IP address" corresponding to the extension information of the called IP telephone terminal 5 included in the call connection request information is stored in the IP address storage unit 11
Read from the extension management table 12. The IP address reading unit 14 outputs the “global IP address” corresponding to the extension information of the called IP telephone terminal 5 read from the extension management table 12 of the IP address storage unit 11 to the calling IP.
It is sent to the transmitter 17 together with the “global IP address” of the telephone terminal 5.

[Global IP of the originating IP telephone terminal 5]
The confirmation of the "address" is performed by determining whether or not it is the "global IP address" stored in the extension management table 12. The "global IP address" corresponding to the extension information of the called IP telephone terminal 5 is read using the "extension number" of the called IP telephone terminal 5 included in the extension information of the called IP telephone terminal 5 as a search key. , "Global IP address" corresponding to the "extension number"
This is done by searching for.

The information reading unit 15 receives the browsing request information sent from the receiving unit 13, confirms the "global IP address" of the originating IP telephone terminal 5 included in the browsing request information, and confirms the appropriate "global". In the case of “IP address”, the predetermined information stored in the extension management table 12 of the IP address storage unit 11 is read. Information reading unit 1
Reference numeral 5 denotes an extension management table 12 of the IP address storage unit 11.
The predetermined information read out from is sent to the transmitter 17 together with the "global IP address" of the originating IP telephone terminal 5. The confirmation of the "global IP address" of the originating IP telephone terminal 5 is performed by determining whether or not the "global IP address" stored in the extension management table 12.

The setting registration section 16 receives the setting registration information sent from the receiving section 13, confirms the "global IP address" of the originating IP telephone terminal 5 included in the setting registration information, and confirms that the "global IP address" is appropriate. In the case of "IP address", processing corresponding to the information included in the setting registration information is performed. When the information included in the setting registration information is the registration information, the data is newly registered in the extension management table 12 based on the information included in the registration information. When the information included in the setting registration information is the change information, the data registered in the extension management table 12 is changed based on the information included in the change information. When the information included in the setting registration information is the deletion information, the data stored in the extension management table 12 is deleted based on the information included in the deletion information.

The transmitting unit 17 includes an IP address reading unit 14
The "global IP address" corresponding to the extension information of the called-side IP telephone terminal 5 and the "global IP address" of the called-side IP telephone terminal 5 sent from
Based on the "global IP address" of the P telephone terminal 5, the "global IP address" of the called IP telephone terminal 5 is transmitted to the corresponding IP telephone terminal 5 as information. Also,
The transmitting unit 17 receives the predetermined information transmitted from the information reading unit 15 and the “global IP address” of the originating IP telephone terminal 5, and responds based on the “global IP address” of the originating IP telephone terminal 5. I to the IP telephone terminal 5
The predetermined information read from the extension management table 12 of the P address storage unit 11 is transmitted.

Next, the operation of the computer 1 (extension call connection service providing method) will be described with reference to FIG.

First, when information is transmitted from any one of the IP telephone terminals 5 to the computer 1 via the IP network 3, the computer 1 transmits the transmitted information to the extension call connection request information, the browsing request information or the setting registration. It is determined whether or not it is information (S101 to S105). When the information transmitted from the IP telephone terminal 5 is extension call connection request information (“YES” in S101), the computer 1
Determines whether the "global IP address" of the originating IP telephone terminal 5 included in the extension call connection request information is appropriate (S107).

[Global IP of the originating IP telephone terminal 5]
If the "address" is appropriate ("Y" in S107)
ES ”), the computer 1 stores the“ global IP address ”corresponding to the extension information (“ extension number ”) of the called IP telephone terminal 5 included in the extension call connection request information in the extension management table 12 of the IP address storage unit 11. Search from
Read (S109: IP address read step).
When the "global IP address" corresponding to the extension information of the called IP telephone terminal 5 is read, the computer 1 receives the "global IP address" of the calling IP telephone terminal 5 included in the extension call connection request information from the called side. The "global IP address" of the IP telephone terminal 5 is transmitted (S11).
1: transmission step). As a result, the originating side IP telephone terminal 5 acquires the "global IP address" of the terminating side IP telephone terminal 5, and a call (voice communication) with the terminating side IP telephone terminal 5 becomes possible. .

When the information transmitted from the IP telephone terminal 5 is the browsing request information ("YES" in S103), the computer 1 determines the IP telephone terminal 5 included in the browsing request information.
It is determined whether or not the "global IP address" is appropriate (S113). If the "global IP address" of the originating IP telephone terminal 5 is appropriate ("YES" in S113), the computer 1
The above-mentioned predetermined information stored in the extension management table 12 of the address storage unit 11 is read (S115). I
When the predetermined information stored in the extension management table 12 of the P address storage unit 11 is read, the computer 1
The predetermined information is transmitted to the "global IP address" of the IP telephone terminal 5 included in the browsing request information (S
117). As a result, the IP telephone terminal 5 can browse the information included in the extension management table 12 of the IP address storage unit 11.

When the information transmitted from the IP telephone terminal 5 is the setting registration information ("YES" in S105), the computer 1 includes the "global IP address" of the originating IP telephone terminal 5 included in the setting registration information. Is determined to be appropriate (S1119). When the “global IP address” of the originating IP telephone terminal 5 is appropriate (“YES” in S119), the computer 1
It is determined whether the registration information is included in the setting registration information (S121), and if it is included ("YE" in S121).
S "), based on the registration information, the" global IP address "of the IP telephone terminal 5 to be registered is used as a key for" group extension number "," extension number "," user "," group "," group name ". , "And" telephone number "are newly registered in the extension management table 12 as data (S123).

If the setting registration information does not include the registration information (“NO” in S121), the computer 1 determines whether the setting registration information includes the change information (S125). Is included (S125
"YES"), the computer 1 determines the "global I" of the IP telephone terminal 5 to be changed based on the change information.
Data registered in the extension management table 12 using the "P address" as a key ("group extension number", "extension number",
"User", "group", "group name", "telephone number") are changed (S127).

When the setting registration information does not include the change information (“NO” in S125), the computer 1 determines that the setting registration information includes the deletion information, and deletes it based on the deletion information. Data registered in the extension management table 12 with the "global IP address" of the IP telephone terminal 5 as a key ("group extension number", "extension number", "user", "group", "group name",
“Telephone number”) is deleted (S129).

Next, the outgoing call operation in the originating IP telephone terminal 5 will be described with reference to FIG.

The originating IP telephone terminal 5 determines whether the extension number of the terminating IP telephone terminal 5 has been dialed (S
201), if it is determined that the call is dialed (“YES” in S201), the extension call connection request information is sent to the computer 1
(S203). Then, the originating IP telephone terminal 5 determines whether or not the information from the computer 1 is received (S205), and when the information is received ("YES" in S205), Global I
It is determined whether the "P address" has been acquired (S20
7).

[Global IP of the called IP telephone terminal 5]
When "Address" is acquired ("YE" in S207)
S ”), the calling side IP telephone terminal 5 is the acquired called side IP
Using the "global IP address" of the telephone terminal 5, a call origination process is executed for the called IP telephone terminal 5 (S2
09), and subsequently, call processing is executed (S211). At this time, the originating IP telephone terminal 5 exchanges capability information with the terminating IP telephone terminal 5 and sends / stops a ringing tone to make a call with the terminating IP telephone terminal 5, that is, It becomes possible to communicate voice data. afterwards,
It is determined whether or not the call has ended (S213), and if the call has ended (“YES” in S213), disconnection processing is executed (S215). On the other hand, when the “global IP address” of the terminating side IP telephone terminal 5 has not been acquired (“NO” in S207), the originating side IP telephone terminal 5
Error processing is executed (S217). For these telephone call processing, call processing, disconnection processing, etc., ITU-T
H. 323.

Next, referring to FIG. 6, the receiving call operation in the IP telephone terminal 5 on the receiving side will be described.

The receiving side IP telephone terminal 5 determines whether or not the telephone connection request information transmitted from the transmitting side IP telephone terminal 5 is received (S301), and when it is determined that it is received (S3).
If “01” is “YES”), a telephone call process (for example, ringing tone transmission, incoming call display, etc.) is executed (S303). At this time, the capability information is exchanged between the receiving side IP telephone terminal 5 and the transmitting side IP telephone terminal 5. The telephone connection request information is the "Global IP" of the originating IP telephone terminal 5.
Address ".

Subsequently, the receiving side IP telephone terminal 5 determines whether or not the off-hook processing has been performed (S305), and determines that the off-hook processing has been performed ("Y" in S305).
ES ”), and the call processing is executed (S307). As a result, a call with the IP telephone terminal 5 on the called side, that is, communication of voice data becomes possible. Then, it is determined whether or not the call has ended (S309), and if the call has ended (S309).
"YES"), and disconnection processing is executed (S311).
These telephone call processing, call processing, disconnection processing, etc. are described in ITU-T H.264. 323.

As described above, in the first embodiment, the computer 1 functions so as to include the IP address storage unit 11 (extension management table 12), the IP address reading unit 14 and the transmitting unit 17, so that the IP address reading is performed. Part 1
In 4 (IP address reading step), when the extension information of the called IP telephone terminal 5 transmitted from the calling IP telephone terminal 5 via the IP network 3 is received, it corresponds to the extension information (“extension number”). The “global IP address” is the extension management table 12 of the IP address storage unit 11.
Read from. Then, the "global IP address" read by the IP address reading unit 14 is transmitted to the originating IP telephone terminal 5 by the transmitting unit 17 (transmission step). As a result, "Global IP address"
The originating IP telephone terminal 5 to which the message is transmitted is placed in a state in which an extension call with the terminating IP telephone terminal 5 is possible by performing the originating process for the received "global IP address". As a result, the user can establish a private branch exchange network without purchasing or renting a device such as a PBX. In addition, the users of the private branch exchange network can operate and manage the private branch exchange network itself without allocating a specialized administrator.

Further, in the first embodiment, the computer 1 functions so as to include the information reading section 15 and the transmitting section 17. Then, by the information reading unit 15, I
When the browsing request information transmitted from the P telephone terminal 5 is received, the predetermined information stored in the extension management table 12 of the IP address storage unit 11 is read out, and the transmission unit 17
The predetermined information read by the information reading unit 15 is transmitted to the IP telephone terminal 5 that has transmitted the browse request information. As a result, the user of the IP telephone terminal 5 can easily browse the predetermined information stored in the extension management table 12 of the IP address storage unit 11, and the operability of the IP telephone terminal 5 by the user is extremely high. improves.

Further, in the first embodiment, the computer 1 functions so as to include the setting registration unit 16. Then, when the setting registration unit 16 receives the setting registration information transmitted from the IP telephone terminal 5, the predetermined information stored in the extension management table 12 of the IP address storage unit 11 is set and registered. Thereby, the user of the IP telephone terminal 5 can easily set and register the predetermined information stored in the extension management table 12 of the IP address storage unit 11 (for example, change, addition, deletion of registered contents). Therefore, the operability of the IP telephone terminal 5 by the user is significantly improved.

(Second Embodiment) The second embodiment is different from the first embodiment in that a call connection process is performed via the computer 1.

As shown in FIG. 7, the computer 1 has, as functional components, an IP address storage unit 11, a receiving unit 13, an IP address reading unit 14, and an information reading unit 1.
5, setting registration unit 16, transmission unit 17, call connection processing unit 18
(Call connection processing means) and the like.

The receiving unit 13 receives the extension call connection request information, the browsing request information, and the setting registration information, as well as each IP telephone terminal 5 (incoming side IP telephone terminal 5) via the IP network 3.
Receives the incoming call availability information sent from. Receiver 13
Sends the received callable information to the call connection processing unit 18.

The transmitting unit 17 includes the IP address reading unit 14
The "global IP address" corresponding to the extension information of the called-side IP telephone terminal 5 and the "global IP address" of the called-side IP telephone terminal 5 sent from
Based on the “global IP address” of the P telephone terminal 5, the connection availability information is transmitted to the corresponding IP telephone terminal 5. Here, the connection availability information is the telephone connection request information and the calling side IP.
The capability information of the telephone terminal 5 and the like are included. The capability information of the originating side IP telephone terminal 5 transmitted from the transmitting unit 17 may be transmitted from the originating side IP telephone terminal 5 to the computer 1 by being included in the extension call connection request information, and is stored in advance on the computer 1 side. You may keep it.

The call connection processing section 18 receives the incoming call enable information of the receiving side IP telephone terminal 5 sent from the receiving section 13, and makes a call between the calling side IP telephone terminal 5 and the receiving side IP telephone terminal 5. It is for connecting and sends the call connection information to the transmission unit 17. The call connection information includes information for notifying that the called IP telephone terminal 5 is calling, capability information of the called IP telephone terminal 5, and the like. The capability information of the receiving side IP telephone terminal 5 sent from the call connection processing unit 18 may be transmitted from the receiving side IP telephone terminal 5 to the computer 1 by being included in the callable information, and is stored in advance on the computer 1 side. You may keep it. Transmitter 17
When the call connection information is sent from the call connection processing unit 18, sends the call connection information to the corresponding IP telephone terminal 5 based on the “global IP address” of the originating IP telephone terminal 5.

Further, the receiving unit 13 receives the off-hook processing information sent from the receiving side IP telephone terminal 5 for notifying that the off-hook processing has been performed, and sends the off-hook processing information to the call connection processing unit 18. To do. Upon receiving the off-hook processing information, the call connection processing unit 18 sends the information to the transmission unit 17. When the off-hook processing information is transmitted from the call connection processing unit 18, the transmission unit 17 transmits the information to the corresponding IP telephone terminal 5 based on the “global IP address” of the originating IP telephone terminal 5.

Next, a call connection sequence (extension call connection service providing method) will be described with reference to FIG.

When the extension IP telephone terminal 5 dials the extension number, the originating IP telephone terminal 5 transmits extension call connection request information to the computer 1. Computer 1
Upon receiving the extension call connection request information, checks whether the "global IP address" of the originating IP telephone terminal 5 included in the extension call connection request information is appropriate. Then, the computer 1 searches the extension management table 12 of the IP address storage unit 11 for the “global IP address” corresponding to the extension information (“extension number”) of the called IP telephone terminal 5 included in the extension call connection request information. Read out (IP address reading step). When the “global IP address” corresponding to the extension information of the called-side IP telephone terminal 5 is read, the computer 1 finds that the called-side IP telephone terminal 5
"Global IP address" corresponding to the extension information of
The connection permission information is transmitted to (transmission step). As a result, the receiving side IP telephone terminal 5 acquires the telephone connection request information and the capability information of the transmitting side IP telephone terminal 5.

Upon receiving the connection availability information, the receiving side IP telephone terminal 5 determines whether the incoming call is possible. If the incoming call is possible, the incoming call possible information is transmitted to the computer 1. At this time, the IP telephone terminal 5 on the receiving side executes a telephone calling process (for example, sending a ring tone, displaying an incoming call, etc.). Computer 1
When receiving the callable information, the call connection information is sent to the calling side IP.
It is transmitted to the telephone terminal 5 (call connection processing step). As a result, the originating side IP telephone terminal 5 is notified of the information for notifying that the destination side IP telephone terminal 5 is calling and the receiving side IP telephone terminal 5.
The capability information of the P telephone terminal 5 will be acquired. Upon acquisition of the call connection information, the originating IP telephone terminal 5 performs processing such as sending a ringing tone.

When the off-hook process is performed, the IP telephone terminal 5 on the receiving side executes a call process and the like, and also transmits information for notifying that the off-hook process has been performed to the computer 1. As a result, the IP telephone terminal 5 on the receiving side can talk with the IP telephone terminal 5 on the calling side, that is, can communicate voice data.

When the computer 1 receives the information for notifying that the off-hook processing has been performed, the computer 1 transmits the information to the originating IP telephone terminal 5. Upon receiving the information for notifying that the off-hook processing has been performed, the originating IP telephone terminal 5 executes ringing tone stop processing, call processing, and the like. As a result, the originating IP telephone terminal 5 is
A call with the P telephone terminal 5, that is, communication of voice data becomes possible.

It should be noted that the originating side IP telephone terminal 5 and the receiving side IP
The voice data communication (call) with the telephone terminal 5 and the disconnection process may be performed via the computer 1, or may be performed directly between the originating side IP telephone terminal 5 and the receiving side IP telephone terminal 5. You may Voice data communication (call) and disconnection processing between the originating IP telephone terminal 5 and the terminating IP telephone terminal 5 are performed by the originating IP telephone terminal 5 and the terminating IP.
In the case of performing directly with the telephone terminal 5, the originating side IP telephone terminal 5 and the receiving side IP telephone terminal 5 are "global IP
It is necessary to acquire the "address" and the port number from each other.

As described above, in the second embodiment, the computer 1 is provided with the IP address storage unit 11 (extension management table 12), the IP address reading unit 14, the transmission unit 17, and the call connection processing unit 18. From doing
When the IP address reading unit 14 (IP address reading step) receives the extension information of the called IP telephone terminal 5 transmitted from the calling IP telephone terminal 5 via the IP network 3, the extension information (“extension number”) is received. ) Corresponds to the “global IP address” is the IP address storage unit 11
Is read from the extension management table 12 of the
In (transmission step), the connection propriety information is transmitted to the terminating side IP telephone terminal 5 having the “global IP address” read by the IP address reading unit 14. Then, when the call connection processing unit 18 (call connection processing step) receives the incoming call enable information transmitted from the callee IP telephone terminal 5 that has sent the connection propriety information, the caller IP telephone terminal 5 and the callee IP telephone terminal 5 are received. The call to and from 5 is connected. As a result, the originating-side IP telephone terminal 5 and the terminating-side IP telephone terminal 5 are in a state capable of making an extension call via the computer 1. As a result, the user can establish a private branch exchange network without purchasing or renting a device such as a PBX. In addition, the users of the private branch exchange network can operate and manage the private branch exchange network itself without allocating a specialized administrator.

[0058]

As described above in detail, according to the present invention, it is possible to provide a computer and an extension call connection service providing method capable of easily establishing a private branch exchange network at low cost. .

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a computer and an IP telephone terminal according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a functional configuration of the computer shown in FIG.

FIG. 3 is a diagram for explaining a configuration of an extension management table of an IP address storage unit.

FIG. 4 is a flowchart for explaining the operation of the computer shown in FIG. 1 (extension call connection service providing method).

5 is a flowchart for explaining an outgoing call operation in the IP telephone terminal (originating IP telephone terminal) shown in FIG.

FIG. 6 is a flowchart for explaining an incoming call operation in the IP telephone terminal (incoming side IP telephone terminal) shown in FIG.

FIG. 7 is a block diagram showing a functional configuration of a computer according to a second embodiment of the present invention.

FIG. 8 is a sequence chart for explaining a call connection sequence (extension call connection service providing method) in the second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Computer, 3 ... IP network, 5 ... IP telephone terminal, 11 ... IP address storage unit, 12 ... Extension management table, 13 ... Receiving unit, 14 ... IP address reading unit,
15 ... Information reading unit, 16 ... Setting registration unit, 17 ... Transmission unit, 18 ... Call connection processing unit.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5K024 CC01 CC07 DD04 GG03                 5K033 BA02 DA01 EC04                 5K051 AA08 BB01 BB02 CC01 CC02                       CC04 DD03 EE01 EE02 HH17                       HH27                 5K101 KK02 LL04 LL05 NN21 PP03                       RR28 SS08

Claims (6)

[Claims] 1. A computer in which a plurality of IP telephone terminals capable of extension calls are connected via an IP network, and storage means for storing extension information and IP addresses in association with each other for each of the plurality of IP telephone terminals. And an IP address reading unit that reads out an IP address corresponding to the extension information from the storage unit when receiving the extension information of the receiving side IP telephone terminal transmitted from the calling side IP telephone terminal through the IP network. The IP read by the IP address reading means
A transmission means for transmitting an address to the originating IP telephone terminal. 2. A computer in which a plurality of IP telephone terminals capable of extension calls are connected via an IP network, and storage means for storing extension information and IP addresses in association with each other for each of the plurality of IP telephone terminals. And an IP address reading unit that reads out an IP address corresponding to the extension information from the storage unit when receiving the extension information of the receiving side IP telephone terminal transmitted from the calling side IP telephone terminal through the IP network. The I read by the IP address reading means
The transmitting means for transmitting the connection availability information to the receiving side IP telephone terminal having the P address, and the receiving side information transmitted from the receiving side IP telephone terminal transmitting the connection availability information, the transmitting side I
And a call connection processing unit for connecting a call between the P telephone terminal and the called IP telephone terminal. 3. When receiving the browsing request information transmitted from the IP telephone terminal, an information reading unit that reads out predetermined information stored in the storage unit, and the predetermined information read out by the information reading unit. The computer according to claim 1 or 2, further comprising: information transmitting means for transmitting information to the IP telephone terminal that has transmitted the browse request information. 4. The setting registration means for setting and registering the predetermined information stored in the storage means when the setting registration information transmitted from the IP telephone terminal is received. The computer according to claim 2. 5. A computer for connecting a plurality of IP telephone terminals capable of making an extension call via an IP network to connect an extension telephone call between a calling side IP telephone terminal and a receiving side IP telephone terminal. A method for providing an extension call connection service, wherein storage means in which extension information and an IP address are associated and stored for each of the plurality of IP telephone terminals is stored, and an IP address reading means is provided from the originating IP telephone terminal to the IP network. When receiving the extension information of the called-side IP telephone terminal transmitted via the IP, the IP address corresponding to the extension information is read from the storage means.
A method for providing an extension call connection service, comprising: an address reading step; and a sending step, in which the sending means sends the IP address read by the IP address reading means to the originating IP telephone terminal. . 6. A computer for connecting a plurality of IP telephone terminals capable of making an extension call via an IP network to connect an extension telephone call between a calling side IP telephone terminal and a receiving side IP telephone terminal. A method for providing an extension call connection service, wherein storage means in which extension information and an IP address are associated and stored for each of the plurality of IP telephone terminals is stored, and an IP address reading means is provided from the originating IP telephone terminal to the IP network. When receiving the extension information of the called-side IP telephone terminal transmitted via the IP, the IP address corresponding to the extension information is read from the storage means.
An address reading step; a sending step in which the sending means sends connection availability information to the called IP telephone terminal having the IP address read by the IP address reading means; and a call connection processing means in the call connection processing means. A call connection processing step of connecting a call between the originating side IP telephone terminal and the terminating side IP telephone terminal when receiving the incoming call enable information transmitted from the terminating side IP telephone terminal which has transmitted the permission information. A method of providing an extension call connection service, comprising: