JP2003309588A - Ip communication system urging ip address registration by incoming call of number display service, and gate keeper and terminal device constituting the ip communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an IP communication system in which IP communication can be performed with an IP terminal having an IP address unregistered. <P>SOLUTION: In the IP communication system, a gate keeper (GK) 1 having a main control unit 10, IP gate keeper control unit 11, IP signaling control unit 12, IP address registration table 14, registration table managing unit 15, transmission control unit 16, and analog line control unit 17 is connected to IP terminal devices each having a function for recognizing an incoming call from the GK and an IP address registration processing function for performing IP address registration processing at the time of incoming call from the GK, via an IP network and a public network. When the caller side requests IP connection to the called side, if the called side terminal is not registered in the table 14 after retrieving the table, the GK urges the terminal to register the IP address by analog transmission, and the terminal registers its IP address via the IP network to make communication between the caller side terminal and the called side terminal. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an IP (Inter-net).
The present invention relates to an IP communication system for making an IP call between opposing IP terminal devices connected via a network,
IP with an unregistered IP address when making a call over the IP network
The present invention relates to an IP communication system in which a terminal device is prompted to register an IP address by using a number display function based on an analog public network, and a gatekeeper and an IP terminal device forming the IP communication system.

[0002]

2. Description of the Related Art The configuration of a conventional IP communication system via a gatekeeper will be described with reference to FIG. The IP communication system is configured by connecting the gatekeeper 1 and IP terminal devices 3A and 3B such as IP telephones via an IP network 51.

In such an IP communication system, I
The procedure for making an IP call between the P terminal devices 3A and 3B will be described with reference to FIG.
Will be explained.

IP terminal device 3A trying to make an IP call
Sends its own IP to the gatekeeper 1 via the IP network 51.
A registration request (RRQ) including the address is transmitted (step S41). The gatekeeper 1 that has received the registration request (RRQ) registers the IP address of the IP terminal device 3A in the registration table and returns a registration confirmation (RCF) (step S42).

Similarly, the IP terminal device 3B trying to make an IP call transmits a registration request (RRQ) including its own IP address to the gatekeeper 1 via the IP network 51 (step S43). Upon receiving the registration request (RRQ), the gatekeeper 1 registers the IP address of the IP terminal device 3B in the registration table and returns a registration confirmation (RCF) (step S44).

An IP that wants an IP call with the IP terminal 3B
Terminal device 3A transfers to gatekeeper 1 IP terminal device 3B
When a call start request (ARQ) is sent (step S
45), the gatekeeper 1 refers to the registration table, recognizes that the IP address of the IP terminal device 3B is registered, and issues an authorization response (ACF) including the IP address of the IP terminal device 3B to the IP terminal device. It returns to 3A (step S46).

The IP terminal device 3A, which has acquired the IP address of the IP terminal device 3B, sends the call setting to the IP terminal device 3B via the IP network 51 (step S47).

Upon receiving the call setting, the IP terminal device 3B
The call setting acceptance is returned to the IP terminal device 3A via the P network 51 (step S48), and a start request (ARQ) including its own IP address is sent to the gatekeeper 1 (step S49).

The gatekeeper 1 refers to the registration table, recognizes that the IP address of the IP terminal device 3B is registered, and then sends an authorization response (ACF) including the IP address of the IP terminal device 3A to the IP terminal device. It returns to 3B (step S50).

The IP terminal device 3B, which has acquired the IP address of the IP terminal device 3A, sends a call to the IP terminal device 3A via the IP network 51 (step S51).
After sending the response (step S52), the IP terminal device 3
I via the IP network 51 between A and the IP terminal device 3B
A P call is made (step S53).

In this way, both IP terminal devices 3A, 3
When the IP address of B is registered in the gatekeeper 1, it is possible to make an IP call after a predetermined procedure, but when making a call to an IP terminal device that does not have an IP address registered, an IP call cannot be made. . That is, the IP terminal device 3A has an IP address with the IP terminal device 3C that does not register its own IP address in the gatekeeper 1.
When a call start request (ARQ) with the IP terminal device 3C is transmitted to the gatekeeper 1 in hope of connection (step S6)
1), the gatekeeper 1 refers to the registration table and I
Recognizing that the IP address of the P terminal device 3C is not registered, a rejection response (ARJ) is returned to the IP terminal device 3A (step S62).

In this way, the IP terminal device 3A can make an IP call only with the IP terminal device which has registered its own IP address with the gatekeeper 1 in advance, and can make an IP call. I have not registered in advance
An IP call cannot be made with the P terminal device.

Since the IP address registration operation for the gatekeeper is registered when the IP terminal device (IP terminal device) is started or by an arbitrary operation, it is possible to make a connection at any time after the call is ready.

As described above, in order to make an IP call through the IP network, it is necessary to register the IP address in advance with the gatekeeper. However, the IP terminal device such as the IP telephone of the other party is still self-registering. If the IP address of is not registered in the gatekeeper, IP communication cannot be performed. In order to make an IP call, it is necessary to activate the IP terminal device of the other party and register the IP address in the gatekeeper.

[0015]

SUMMARY OF THE INVENTION According to the present invention, when an IP call request is made from an IP terminal device to a gatekeeper,
When the other party's IP terminal device does not register the IP address with the gatekeeper, the other party's I
An IP communication system capable of prompting a registration operation of an IP address by making a number display incoming call to a P terminal device via an analog public network and making an IP call,
It is an object of the present invention to provide a gatekeeper and an IP terminal device that make up this IP communication system.

[0016]

In order to solve the above problems, the present invention provides a gatekeeper for connecting an IP terminal device such as an IP telephone, which has a function of transmitting to the IP terminal device and the other party of the call. If the IP address of the IP terminal device of the
We propose a gatekeeper that prompts the registration operation after the P terminal device receives the number display once. Also, IP
It has a function of registering an IP address in the gatekeeper upon receipt of an incoming operation from the gatekeeper which the terminal device side recognizes.

In order to solve the above problems, the present invention provides I
In an IP communication system including a gatekeeper and a plurality of IP terminal devices connected via a P network and an analog public network, the gatekeeper includes a main control unit, an IP gatekeeper control unit, an IP signaling control unit, and an I
P address registration table, registration table management unit, I
It has an outgoing call control unit to the P terminal device and an analog line control unit, and the receiving IP terminal device recognizes the incoming call from the gatekeeper by the incoming number display and the incoming call from the gatekeeper. If there is an IP address registration processing unit that executes its own IP address registration processing, and if the originating IP terminal device requests the IP connection with the destination IP terminal device to the gatekeeper, the gatekeeper Searches the IP address registration table and if the IP address of the destination IP terminal device is not registered, the destination IP terminal device is prompted to register the IP address by receiving a number display call via the analog public network, When the side IP terminal device registers its own IP address with the gatekeeper via the IP network,
An IP call is made between the originating IP terminal device and the terminating IP terminal device.

In order to solve the above-mentioned problems, the present invention provides a gatekeeper that constitutes the above IP communication system, and performs a protocol control such as a main controller for controlling the entire gatekeeper and an address exchange of the gatekeeper.
A P-gatekeeper control unit, an IP signaling control unit for performing protocol control such as IP call control, and an IP in which a telephone number and an IP address of an IP terminal device are associated and registered.
An address registration table, a registration table management unit that manages the IP address registration table, and a call-out control unit for the IP terminal device that controls the call-out requesting the destination IP terminal device that has not registered the IP address to register the IP address And an analog line controller for making an analog call to the destination IP terminal device. When an IP connection request is made from the source IP terminal device to the destination IP terminal device, the IP address registration table is searched. Then, when the IP address of the destination IP terminal is not registered, the number display is received by the destination IP terminal via the analog public network.
The P address registration is prompted, and when the IP address is registered from the destination IP terminal device via the IP network, the IP address of the destination IP terminal device is notified to the source IP terminal device.

In order to solve the above problems, the present invention provides an IP terminal device which constitutes the above IP communication system,
A means for recognizing that the gatekeeper has received an incoming number display incoming call, and an IP address registration means for performing a process of registering its own IP address with the gatekeeper when the incoming incoming number display incoming call is received from the gatekeeper. Equipped with.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a communication system using a gatekeeper according to a first embodiment of the present invention will be described with reference to FIG. The IP communication system using the gatekeeper according to the first embodiment of the present invention includes a gatekeeper 1 and IP terminal devices 3A and 3B such as IP telephones.
Are connected via the IP public network 51 and the analog public network 55.

With reference to FIG. 2, the configuration of the gatekeeper for prompting the registration of the IP address by the incoming number display call in the IP communication system according to the present invention will be described. A gatekeeper 1 according to the present invention includes a main control unit 10, an IP gatekeeper control unit 11, an IP signaling control unit 12, a TCP / IP control unit 13, and an I.
P address registration table 14 and registration table management unit 1
5, an IP terminal device transmission control unit 16, an analog line control unit 17, an Ethernet (registered trademark) interface 18, and a timer processing unit 19.

The main controller 10 is means for controlling the entire gatekeeper. That is, the main control unit 10 has a function of registering / recording the telephone number of the IP terminal device that makes an analog transmission when the IP address is not registered, and receives the unregistered information notified from the IP gatekeeper control unit 11 to register it. I make an analog call to the telephone number of the IP terminal
It has a function of requesting the transmission control unit 16 to the P terminal device.

The IP gatekeeper control unit 11 is means for performing protocol control such as address exchange of the gatekeeper. That is, the IP gatekeeper control unit 11
Is a function for writing and managing the IP address and telephone number of its own IP terminal device, which has been requested to be set by the IP terminal device, in the IP address registration table, and the IP address for the telephone number requested by the IP terminal device. It has a function of notifying (IP address resolution) and a function of notifying the main control unit 10 as unregistered information when an address of an IP terminal device that is not in the IP address registration table is requested.

The IP signaling controller 12 is means for performing protocol control such as IP call control. That is,
When the IP terminal device performs a connection operation via this gatekeeper, the IP signaling control unit 12 performs H.264 / AVC communication. 32
The IP signaling process by 3 procedures etc.
It has a function to perform to the P terminal device.

The TCP / IP control unit 13 uses the TCP / UD
A means for performing P / IP protocol control, which is an IP signaling control unit 12 or an IP gatekeeper control unit 11.
It has a function of generating the data sent from the IP packet and transmitting / receiving it.

In the IP address registration table 14, the telephone number of the IP terminal device requested to be registered by the IP terminal device and the IP address are registered in association with each other. The registration table management unit 15 periodically checks whether or not there is a registered IP terminal device, and if the registered IP terminal device no longer exists, the IP information of the registration information registered in the IP registration table will be The address is deleted.

The registration table management unit 15 is means for registering and managing the telephone number / IP address of the IP terminal device.

The transmission control unit 16 for the IP terminal device is
It is means for performing analog transmission control for prompting registration to an IP terminal device that has not registered an address. That is, the transmission control unit 16 to the IP terminal device is the main control unit 1
It has a function of performing analog transmission control to an IP terminal device instructed from 0 through an analog public network, and a function of disconnecting immediately when a call arrives at an opposite IP terminal device.

The analog line control unit 17 is means for performing an analog transmission process in an analog public network. That is, the analog line control unit 17 has a function of connecting to an ISP for connecting to an IP network, and a function of performing an analog transmission / disconnection operation to an IP terminal device that has not registered an IP address. .

The Ethernet interface 18 has an Ethernet interface and is an interface with Ethernet for transmitting and receiving IP packets.

The timer processing section 19 is means used for confirmation of the IP terminal device. That is, the timer processing unit 1
Reference numeral 9 has a function of monitoring the IP address registration table, and determines whether or not there is a terminal device that is regularly registered in the IP address registration table from the main control unit 10 via the IP gatekeeper control unit 11. It has the function of monitoring.

In addition to the normal IP terminal device function, the IP terminal device 3 recognizes that an incoming call from the gatekeeper has been received by receiving an incoming number display from the gatekeeper, and an incoming number display from the gatekeeper. And an IP address registration unit that performs a process of registering its own IP address with the gatekeeper when receiving the information.

In the IP communication system of the present invention, a telephone number of an IP terminal device or the like for making analog transmission is registered in advance in the gatekeeper 1. Also, the telephone number in which the gatekeeper is accommodated is registered in the IP terminal device or the like.

When a connection operation is performed from the originating IP terminal device 3A, the gatekeeper 1 refers to the IP address registration table 14 to check whether the IP address of the partner IP terminal device 3B is registered, If the address is not registered, the analog transmission operation is performed to the IP terminal device 3B via the analog public network 55. At this time, the analog transmission operation is immediately disconnected before the partner IP terminal device 3B responds.

When the other party's IP terminal device 3B receives the analog incoming call via the analog public network 55 and recognizes the incoming call from the gatekeeper 1 by the incoming number display, it sends an IP to the gatekeeper 1 via the IP network 51.
Perform address registration processing.

After the IP address of the partner IP terminal device 3B is registered, an IP call can be made by a normal procedure.

In the above, it is not necessary to limit to the IP telephone as long as it is an IP terminal device for performing the registration operation to the gatekeeper.

The details of the flow of the call connection process in the IP call will be described with reference to FIG. An IP address is registered in advance in the gatekeeper 1 from the IP terminal device 3. That is, the IP terminal device 3A transmits a registration request (RRQ) carrying its own telephone number to the gatekeeper 1 via the IP network 51 (step S1). Gatekeeper 1 uses the IP address registration table for the I corresponding to this telephone number.
After registering the P address (step S3), the registration confirmation (RCF) to which the IP address is added is returned to the IP terminal device 3A via the IP network 51 (step S4). Similarly, the IP terminal device 3B transmits a registration request (RRQ) carrying its own telephone number to the gatekeeper 1 via the IP network 51 (step S2). Gatekeeper 1 is I
IP corresponding to this telephone number in the P address registration table
After registering the address (step S3), the registration confirmation (RCF) to which the IP address is added is returned to the IP terminal device 3B via the IP network 51 (step S5).

When an IP connection request is issued from the user to the IP terminal device 3A, the IP terminal device 3A issues a start request (ARQ) containing the other party's telephone number and its own IP address to the I
It is transmitted to the gatekeeper 1 via the P network 51 (step S6).

The gatekeeper 1 searches the IP address registration table by using the other party's telephone number (step S
7) The permission (ACF) having the acquired IP address of the partner IP terminal device 3B is transmitted to the IP terminal device 3A via the IP network 51 (step S8).

The IP terminal device 3A, which has acquired the IP address of the partner IP terminal device 3B, sends the call setting to the partner IP terminal device 3B via the IP network 51 using this IP address (step S9).

The partner IP terminal device 3B is the IP terminal device 3
A call setting acceptance is transmitted to A (step S10)
After that, a start request (ARQ) including the telephone number of the IP terminal device 3A and its own IP address is transmitted to the gatekeeper 1 (step S11).

The gatekeeper 1 uses the telephone number of the IP terminal device 3A to search the IP address registration table and obtains the permission (ACF) having the IP address of the IP terminal device 3A installed, via the IP network 51. IP terminal device 3B
To (step S12).

The IP terminal device 3B uses the acquired IP address of the IP terminal device 3A to call and send (step S13), and also sends a response signal (step S14).

In this way, an IP call is made between the IP terminal device 3A and the IP terminal device 3B whose IP addresses have been registered in the gatekeeper 1 in advance (step S1).
5).

Next, a procedure for IP connection from the IP terminal device 3A having its own IP address registered in the gatekeeper 1 to the IP terminal device 3C having no IP address registered will be described.

When an IP connection request is issued from the user to the IP terminal device 3A, the IP terminal device 3A issues a start request (ARQ) containing the other party's telephone number and its own IP address to the I
It is transmitted to the gatekeeper 1 via the P network 51 (step S20).

The gatekeeper 1 searches the IP address registration table using the telephone number of the other party, and
When recognizing that the IP address of the terminal device 3C is not registered, after making an analog call to the IP terminal device 3C via the analog public network 55 (step S21), this call is disconnected (step S22).

When the IP terminal device 3C, which has received an analog call through the analog public network 55, recognizes that the call has been received from the gatekeeper 1 by the telephone number acquired by the number display call, the registration request with its own telephone number is installed. (RRQ) is sent to the gatekeeper 1 via the IP network 51 (step S23).

The gatekeeper 1 associates the IP address of the IP terminal device 3C with the telephone number and registers it in the IP address registration table 14 (step S24). Then
The gatekeeper 1 transmits a registration confirmation (RCF) having the IP address of the IP terminal device 3C to the IP terminal device 3C via the IP network 51 (step S25), and also has the IP address of the IP terminal device 3C installed. The permission (ACF) is transmitted to the IP terminal device 3A via the IP network 51 (step S26).

The IP terminal device 3A, which has acquired the IP address of the partner IP terminal device 3C, sends the call setting to the partner IP terminal device 3C using this IP address via the IP network 51 (step S27).

The other IP terminal device 3C is the IP terminal device 3
After transmitting the call setting acceptance to the A via the IP network 51 (step S28), a start request (ARQ) in which the telephone number of the IP terminal device 3A and its own IP address are installed is transmitted.
The data is transmitted to the gatekeeper 1 via the IP network 51 (step S29).

The gatekeeper 1 uses the telephone number of the IP terminal device 3A to search the IP address registration table 14 and obtains the permission (ACF) having the IP address of the IP terminal device 3A, which is acquired through the IP network 51. To the IP terminal device 3C (step S30).

Using the acquired IP address of the IP terminal device 3A, the IP terminal device 3C sends a calling signal via the IP network 51 (step S31) and a reply signal (step S32).

In this way, an IP call is made between the IP terminal device 3A whose IP address is registered in the gatekeeper 1 in advance and the IP terminal device 3C whose IP address is not registered (step S33).

The configuration of the communication system using the gatekeeper according to the second embodiment of the present invention will be described with reference to FIG. The IP communication system using the gatekeeper according to the second embodiment of the present invention is the gatekeeper 1
, Analog telephone 61A and digital terminal device 62A
, And the VoIP adapter 4A for accommodating thereinto is connected via the IP network 51 and the analog public network 55, and the gatekeeper 1
, Analog telephone 61B and digital terminal 62B
Is connected to the VoIP adapter 4B that accommodates the VoIP adapter 4B via the IP network 51 and the analog public network 55.
It is configured by connecting A and the VoIP adapter 4B via the IP network 51.

The gatekeeper 1 constituting the IP communication system according to this embodiment has the same structure as the gatekeeper 1 used in the first embodiment, and therefore its explanation is omitted.

The VoIP adapter 4 in the IP communication system according to this embodiment accommodates the digital terminal device 62 such as a personal computer and the analog terminal device 61 such as an analog telephone, and the digital terminal device 62 and the analog terminal device. 61 is I
It has a function of performing IP communication via the P network 51 and a function of allowing the analog terminal device 61 to make a call via the analog line 55. Furthermore, the VoIP adapter 4 has a function of registering its own IP address in the gatekeeper 1 and a number display receiving function when an incoming call is received via the analog line 55, thereby confirming that the incoming call is from the gatekeeper 1. It has a function of recognizing and an IP address registration function of registering its own IP address with the gatekeeper when an analog incoming call is received from the gatekeeper 1.

In the IP communication system of this embodiment, the VoI for permitting connection to the gatekeeper 1 in advance.
Register the telephone number of the P adapter, etc. Also, Vo
The telephone number of the gatekeeper 1 is also registered in the IP adapter.

When the connection operation is performed from the originating VoIP adapter 4A, the gatekeeper 1 refers to the IP address registration table 14 to check whether the IP address of the VoIP adapter 4B on the other side is registered. If not registered, the VoIP adapter 4B
Then, an analog transmission operation is performed via the analog public network 55. At this time, the analog transmission operation is performed by the other side VoI.
Immediately disconnect before the P adapter 4B responds.

When the other party VoIP adapter 4B receives the incoming call through the analog public network 55 and recognizes that the incoming call is from the gatekeeper 1 by the incoming number display,
IP address registration processing is performed on the gatekeeper 1 via the IP network 51.

After the IP address of the other party's IP terminal device 3B is registered, an IP call can be made by a normal procedure.

Using FIG. 5, I according to this embodiment is described.
The configuration of the VoIP adapter 4 in the P communication system will be described. The VoIP adapter 4 includes a main control unit 40, an analog call / Internet call changeover switch 41, and
P signaling control unit 42 and TCP / IP control unit 43
, Line side analog line control unit 44T, subscriber side analog line control unit 44S, IP address registration control unit 45
A line-side Ethernet interface 46T, a subscriber-side Ethernet interface 46S, a ringtone generator 47, and a voice compression / decompression processor 48.

The main controller 40 is a means for controlling the entire VoIP adapter. That is, the main control unit 40 has a function of registering / recording the telephone number and IP address of the IP terminal device such as the other party's VoIP adapter 4 or the gatekeeper 1, and receiving a number display from the line side analog line control unit 44T. To recognize the other party's telephone number, to recognize that the incoming call is from the gatekeeper 1 using this telephone number, and to receive an analog incoming call from the gatekeeper 1 via the IP network 51. It has a function of transmitting a registration request (RRQ) to the gatekeeper 1. That is, the main control unit 40 controls the H.264. By the procedure of H.323, it works to judge whether the call from the analog terminal device 61 wants an analog call or an internet call, and it is determined whether the digital call received from the IP network 51 is a call to the analog terminal device 61. It has a function of making a judgment, making a judgment and an instruction for switching between an analog call and an Internet call, performing an IP address exchange necessary for an Internet call, and instructing an IP signaling control unit 42 to perform a call connection operation for connecting an Internet call. is doing. Further, the main control unit 40 instructs the ring tone generation unit 47 to send an Internet ring tone to the analog telephone 61 when the Internet call path is established, and disconnects the analog network when the analog call is switched to the Internet call. It has a function of giving an instruction to the side analog line control unit 44T. Further, the main control unit 40 controls the I
It also has a function of generating an IP packet during a P call.

The analog call / Internet call changeover switch 41 makes a call between the analog terminal device 61 and the analog line network 55 through the line side analog line control section 44T and through the line side Ethernet interface 46T. It has the function of switching to either a call or a call. That is, the analog call / Internet call changeover switch 41 has a function of receiving an instruction from the main control unit 40 and switching the analog call path to the IP call path (Internet call). In the case of an analog call, a call path is formed to pass between the subscriber side analog line control unit 44S and the line side analog line control unit 44T. In the case of an IP call, an analog call from the subscriber side analog line control unit 44S. Is subjected to voice compression processing by the voice compression / decompression processing unit 48 and digitized,
It has a function of forming a communication path as an IP packet to the line side Ethernet interface 46T.

The IP signaling control unit 42 is used for H.264 communication in Internet calls. It is a means for performing call control using an IP signaling protocol such as H.323 or SIP.
That is, the IP signaling control unit 42 has a function of performing a connection operation for making an IP call and performing a call connection by protocol control such as IP call control. The connection operation is used when an analog call is switched to an IP call by an instruction from the main control unit 40 and when an IP call is received after the analog call is received.

The TCP / IP control unit 43 uses the TCP / UD
The P / IP protocol control means has a function of generating data transmitted from the IP signaling control unit 42 into a TCP / IP packet and transmitting / receiving the TCP / IP packet.

The line side analog line control section 44T has a function of controlling the line of the analog line 55, and has a function of controlling incoming and outgoing analog calls using voice communication. . The line-side analog line control unit 44T has a function of recognizing an incoming call from the gatekeeper 1 and notifying the main control unit 40 of the incoming call from the analog network (number display incoming call).

The subscriber side analog line control unit 44S has a function of controlling an analog line connecting to the analog terminal device 61 and controls incoming and outgoing analog calls to and from the analog terminal device 61. Has a function. The subscriber side analog line control unit 44S has a function of recognizing whether or not the callee (dial destination) numbers are VoIP adapters having the same function. If the other party is a VoIP adapter having the same function, the main control unit 40 is notified that the connection destination is the terminal device having the same function. If the other party's VoIP adapter does not have the same function, it connects to the analog network via the analog call / Internet call changeover switch 41 as it is and the line side analog line control unit 44T. Not performed. The subscriber-side analog line controller 44S also has a function of detecting off-hook information (call origination) and on-hook information (end call) of the connected analog telephone.

The IP address registration control unit 45 uses the telephone number and I of the VoIP adapter acquired from the gatekeeper 1.
This is a means for registering and managing P addresses in association with each other.

Line side Ethernet interface 46T
Has a function of transmitting and receiving digital data via the IP network 51. That is, the line-side Ethernet interface 46T has a function of transmitting IP data from the digital terminal device 62 to the IP network, IP address exchange at the time of making an IP call, and H.264. It has a function of transmitting / receiving IP data of a 323 call connection, and further transmitting / receiving voice packets in an IP call.

Subscriber side Ethernet interface 46
S has a function of controlling a digital line connecting with the digital terminal device 62.
And has a function of controlling transmission and reception of digital data. That is, the subscriber side Ethernet interface 46S is connected to the connected digital terminal device 6
It has a function of sending the IP data from the IP network 2 to the IP network 51 via the line side Ethernet interface 46T.

The ring tone generating section 47 is used for the analog terminal device 6
It is a means for generating various ringing sounds to be sent to the No. 1 side. That is, the ring tone generation unit 47 has a function of generating a ring tone for notifying the connected analog terminal device 61 of an Internet incoming call. Further, the ringtone generator 47
During analog call reception, IP address exchange and H.264. When the Internet call path is established by call control according to the H.323 procedure, it has a function of changing the ring tone to the analog terminal device 61 and notifying the incoming of the Internet via the IP network.

The voice compression / decompression processing unit 48 compresses an analog voice signal into a digital signal when the analog terminal device 61 talks via the analog line network 55, and compresses the analog voice signal received via the analog line network 55. It also has the function of decompressing the digital signal into an analog voice signal. That is, the voice compression / decompression processor 48 has a voice compression function (encoder) and a decompression function (decoder), and has a function of performing digital conversion and decoding between an analog voice signal and a digitized voice signal. ing. The encoding standard is G.264 that uses a band of 64 kbps. G.711 using a bandwidth of 711 or 8 kbps. 729 etc.

Details of the flow of the call connection processing in the second embodiment will be described with reference to FIG. The IP address is previously registered in the gatekeeper 1 from the VoIP adapter 4. That is, the VoIP adapter 4A transmits a registration request (RRQ) carrying its own telephone number to the gatekeeper 1 via the IP network 51 (step S71). The gatekeeper 1 registers the IP address corresponding to this telephone number in the IP address registration table (step S7).
2) After that, registration confirmation (RCF) with IP address added
Is returned to the VoIP adapter 4A via the IP network 51 (step S73).

When the user off-hooks the analog telephone 61A and dials to make an IP connection request to the VoIP adapter 4A (step S74), the VoIP adapter 4A
A transmits a start request (ARQ) having the telephone number of the other party VoIP adapter 4B and its own IP address to the gatekeeper 1 via the IP network 51 (step S).
75).

The gatekeeper 1 searches the IP address registration table using the telephone number of the partner VoIP adapter 4B, and when the IP address of the partner VoIP adapter 4B is not registered, the analog network 55 is set to the partner VoIP adapter 4B. Sent via (step S76)
Immediately thereafter, this transmission is cut off (step S77).

When the VoIP adapter 4B, which has received an analog call through the analog public network 55, recognizes that the call is from the gatekeeper 1 based on the telephone number acquired by the number display call, the registration request (equipped with its own telephone number) RRQ) is sent to the gatekeeper 1 via the IP network 51 (step S78).

The gatekeeper 1 is a VoIP adapter 4
The IP address of B is associated with the telephone number and registered in the IP address registration table 14 (step S79). Next, the gatekeeper 1 uses the IP of the VoIP adapter 4B.
The registration confirmation (RCF) with the address is transferred to the IP network 51.
To the VoIP adapter 4B via the Internet (step S
80) together with the permission (ACF) that mounts the IP address of the VoIP adapter 4B via the IP network 51.
It is transmitted to the IP adapter 4A (step S81).

The VoIP adapter 4A which has acquired the IP address of the partner VoIP adapter 4B sends the call setting to the partner VoIP adapter 4B using this IP address via the IP network 51 (step S82).

The partner VoIP adapter 4B transmits a call setting acceptance to the VoIP adapter 4A via the IP network 51 (step S83), and then a start request in which the telephone number of the VoIP adapter 4A and its own IP address are installed ( A
RQ) to the gatekeeper 1 via the IP network 51 (step S84).

The gatekeeper 1 is a VoIP adapter 4
The permission (ACF) having the IP address of the VoIP adapter 4A, which is obtained by searching the IP address registration table 14 using the telephone number of A, is transferred to the Vo via the IP network 51.
It is transmitted to the IP adapter 4B (step S85).

The VoIP adapter 4B uses the acquired VOI
Using the IP address of the P adapter 4A, a calling signal is sent to the VoIP adapter 4A via the IP network 51 (step S86), and a ring tone is generated and sent to the analog terminal device 61B (step S87). At this time, the VoIP adapter 4A similarly sends a ringing tone to the analog terminal device 61A (step S88).

When the analog terminal device 61B goes off-hook in response to the user on the other end (step S89), VoI
The P adapter 4B transfers the IP network 51 to the VoIP adapter 4A.
A response is sent out via (step S90).

In this way, an IP call is made between the VoIP adapter 4A whose IP address is registered in the gatekeeper 1 in advance and the VoIP adapter 4B whose IP address is not registered, and each VoIP adapter 4 and the analog terminal device. An analog call is made with 61 (step S91).

[0086]

According to the present invention, the IP address registration operation is promoted even for a partner IP terminal device whose IP address has not yet been registered with the gatekeeper.
You can make calls.

Since the number display incoming call is used to prompt the IP terminal device to register the IP address from the gatekeeper, the partner IP terminal device recognizes the IP address registration prompt without using a special sequence. can do.

An incoming call for prompting the IP address setting from the gatekeeper can be made with only one call and is not charged.

This is effective not only for IP telephones but also for gatekeeper IP terminal devices that require number registration.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an outline of a configuration of an IP communication system according to the present invention.

FIG. 2 is a block diagram illustrating an outline of a configuration of a gatekeeper that constitutes the IP communication system according to the present invention.

FIG. 3 shows an IP in the IP communication system according to the present invention.
The flowchart explaining the flow of a connection process.

FIG. 4 is a diagram illustrating an outline of a configuration of an IP communication system according to a second embodiment of the present invention.

FIG. 5 is a block diagram illustrating an outline of a configuration of a VoIP adapter that constitutes an IP communication system according to a second embodiment of the present invention.

FIG. 6 is a flowchart illustrating a flow of IP connection processing in the IP communication system according to the second embodiment of the present invention.

FIG. 7 is a diagram illustrating an outline of a configuration of a conventional IP communication system.

FIG. 8 is a flowchart illustrating a flow of IP connection processing in a conventional IP communication system.

[Explanation of symbols]

1 gatekeeper 10 Main control unit 11 IP gatekeeper control unit 12 IP signaling controller 13 TCP / IP control unit 14 IP address registration table 15 Registration Table Management Department 16 Transmission control unit to IP terminal device 17 Analog line control unit 18 Ethernet controller 19 Timer processing unit 3 IP terminal 51 IP network 55 analog public network

Continued front page    F term (reference) 5K030 GA12 HA01 HA08 HB14 HD10                       KA04 LB02 MD08                 5K036 EE11 JJ05                 5K051 BB01                 5K101 MM07 PP03 RR05

Claims (3)

[Claims] 1. An I terminal between an IP terminal and a gatekeeper.
I connected via P network and analog analog public network
In the P communication system, the gatekeeper is an IP
When an IP connection request is made from the originating IP terminal device to the terminating IP terminal device via the network, the IP address of the terminating IP terminal device is searched from the IP address registration table, and the terminating IP address is searched. When the IP address of the terminal device is not registered, the destination IP terminal device has a function of making an analog call via the analog public network to prompt the registration of the IP address. , Has the function of recognizing the incoming call from the gatekeeper by the incoming number display and the function of registering its own IP address to the gatekeeper via the IP network when the incoming call from the gatekeeper is received. An IP communication system characterized by urging the device to register an IP address by receiving an incoming number display. 2. In a gatekeeper which constitutes an IP communication system in which an IP address registration is prompted by an incoming number display call according to claim 1, a main controller for controlling the entire gatekeeper, an address exchange of the gatekeeper, etc. An IP gatekeeper control unit for performing the protocol control, an IP signaling control unit for performing the protocol control such as the IP call control, an IP address registration table in which the telephone number and the IP address of the IP terminal device are associated and registered, and A registration table management unit that manages the address registration table and I that does not register the IP address.
The P terminal device has a transmission control unit to the IP terminal device for instructing analog transmission to prompt the registration of an IP address, and an analog line control unit for analog transmission to the IP terminal device. When there is an IP connection request to the destination IP terminal device, the IP address registration table is searched, and if the IP address of the destination IP terminal device is not registered, the destination IP terminal device is sent via the analog public network. By the number display incoming call, the IP address registration is prompted, and when the IP address is registered from the destination IP terminal device, the IP address of the destination IP terminal device is notified to the originating IP terminal device. A gatekeeper that configures an IP communication system that prompts IP address registration. 3. A means for recognizing that a gatekeeper has received an incoming number display in an IP terminal device that constitutes an IP communication system in which an IP address registration is prompted by the incoming number display incoming call according to claim 1. An IP address registration means for performing a process of registering its own IP address to the gatekeeper when receiving an incoming number display from the gatekeeper. An IP terminal device that constitutes a communication system.