JP2005080236A - Internet telephone connection system using local IP address - Google Patents

Abstract

A user who receives an Internet service using a local IP address uses an inexpensive Internet telephone.
By accessing a VOIP server for a local IP address and designating a telephone number of a connection destination, a connection is made to a telephone set with a local IP address of the connection destination. If the local IP address VOIP server data table does not exist, the connection request is transferred to the VOIP server connected to the Internet network, and if the connection destination telephone number specified in the VOIP server data table exists, The connection is made to the telephone set with the IP address of the connection destination, and when the telephone number of the connection destination specified in the data table of the VOIP server does not exist, the telephone connection is made through the public telephone line.
[Selection] Figure 1

Description

The present invention relates to an Internet telephone connection system using a local IP address.
The Internet telephone connection system using the local IP address of the present invention can make an Internet telephone call without using a public telephone line from a telephone attached to an Internet terminal using a local IP address. A telephone can be directly talked to.

Telephone systems using the Internet are rapidly spreading because communication costs are reduced by using the Internet network as a telephone line, and various systems have been proposed and put into practical use.
The telephone system using the Internet uses VOLP (Volce over IP) technology that transmits and receives audio data using IP (Internet Protocol) which is a standard protocol of computers, and converts audio into small data blocks. In order to transmit and receive the block by selecting an empty line, communication is performed because multiple lines can be sent on one line so that the line is not occupied until communication is completed between terminals during a call, as in a conventional telephone. It has the characteristics that it is efficient and keeps the price low.
Telephones using the Internet are rapidly spreading because communication costs are reduced by using the Internet network as a telephone line, and various systems have been proposed and put into practical use.
However, it is necessary for Internet telephones to subscribe to the same Internet provider service, and ordinary Internet telephones use telephones but are exclusively connected to terminal adapters (TA), ADSL, CATV, etc. Due to restrictions such as being able to use only within the line, it is inconvenient with low versatility.
In particular, in order to use an Internet phone, it is necessary to have a global IP address for identifying itself or a variable global IP address, so it is used by some CATV providers, large corporations, and call centers. Internet services using local IP addresses could not use Internet telephones.
Japanese Patent Laid-Open No. 10-224853, JP 2000-50474, JP 2000-358101 A, JP 2001-251440 A,

A conventional telephone system using the Internet has a global IP address that identifies itself or a variable global IP in order to use the Internet telephone.
It is necessary to have an address. For this reason, it is impossible to use Internet telephones in Internet services using local IP addresses adopted by CATV providers, some large corporations, and call centers, but Internet using local IP addresses is not possible. There are many requests from users receiving services to use low-cost Internet phones.
In order to cope with this situation, Internet service providers using local IP addresses can make Internet telephone calls without using public telephone lines from telephones attached to Internet terminals using local IP addresses. Therefore, there is a need to realize a telephone system that can make calls between Internet telephones connected to different Internet providers and is easy to use and versatile.

The Internet telephone system of the present invention connects a VOIP adapter that switches and connects a telephone to a public telephone line and an Internet circuit according to an identification signal to an Internet provider's circuit network using a local IP address,
Some Internet providers using local IP addresses have VOIP
VOIP server for local IP addresses that has a data table that is set by pairing a telephone number that identifies an adapter with a corresponding local IP address, and that has a gatekeeper function to manage the data of the telephone number and IP address In addition, in the Internet circuit network, a data paired with a telephone number for identifying a telephone connected to a VOIP adapter connected to an Internet circuit network having a global IP address and a corresponding global IP address A table, and a global IP address of the VOIP server for the local IP address and a data table of a telephone number for identifying the telephone connected to the VOIP adapter connected to the Internet circuit of the provider using the local IP address. A VOIP server with a gatekeeper function that manages the data of the global IP address is provided, and the local IP address VOIP server is accessed from the telephone through the VOIP adapter, and the telephone number of the connection destination is designated. Phone number is VOIP for local IP address
If it exists in the server's data table, connect to the phone where the local IP address of the connection destination is set,

If the specified connection destination telephone number does not exist in the data table of the local IP address VOIP server, the connection request is transferred from the local IP address VOIP server to the VOIP server connected to the Internet network,
If the destination phone number specified in the data table of the VOIP server exists, connect to the phone set with the destination IP address,
When the telephone number of the connection destination specified in the data table of the VOIP server does not exist, an Internet telephone connection system using a local IP address that allows a telephone connection via a public telephone line via a VOIP adapter is realized. This solves the problems of the conventional Internet telephone.
In the Internet telephone system configured as described above, even in the Internet using a local IP address, a telephone connected to each Internet in advance uses a telephone number assigned to a telephone connected to another Internet. As a result, it is possible to easily make a call from a telephone connected to the Internet to a telephone connected to the Internet and a telephone connected to a public telephone line.

In the Internet telephone system using the local IP address of the present invention, a VOIP adapter for switching and connecting a telephone to a public telephone line and an Internet circuit network according to an identification signal is connected to a circuit network of an Internet provider using the local IP address. Even in the Internet using a local IP address by connecting, a telephone connected to the Internet in advance uses a telephone number assigned to a telephone connected to another Internet, so that the telephone connected to the Internet To a telephone connected to the Internet and a telephone connected to a public telephone line can be easily realized.
For this reason, the Internet telephone system using the local IP address of the present invention has a global IP address that identifies itself or a local IP address that does not have a variable global IP address. Even in some internet services at some call centers,
It becomes possible to use an Internet telephone, and a user who receives an Internet service using a local IP address can also use an inexpensive Internet telephone.
In the present invention, since it is possible to correspond to a telephone number of a public line and a local IP address assigned to an Internet user who uses a local IP address in advance, it is possible to connect from a subscriber telephone to an Internet telephone using a local IP address. It is possible to easily realize outgoing calls, outgoing calls from the Internet calling device to the subscriber telephone, and outgoing calls from the Internet calling device to the Internet calling device.
Further, the Internet telephone system using the local IP address of the present invention does not need to be conscious of whether the caller or callee is a subscriber telephone or an Internet telephone, and realizes exactly the same operability as a conventional subscriber telephone. . Furthermore, since the call charge between Internet call devices is basically free regardless of the distance except for the connection charge of the Internet service provider, communication costs can be greatly reduced even in the Internet using a local IP address.

Hereinafter, an embodiment of an Internet telephone connection system using a local IP address of the present invention will be described with reference to FIGS.
FIG. 1 is an explanatory diagram showing a connection system configuration example of an Internet telephone using a local IP address according to the present invention.
In FIG. 1, 11 and 12 are telephones used for public lines.
21 and 22 are VOIP adapters that arbitrarily switch and connect public telephones to a public line and an Internet circuit using a local IP address.
The VOIP adapters 21 and 22 have an analog terminal to which a telephone is connected, a digital terminal to which a personal computer or the like is connected, a network interface of the Internet, and an analog telephone interface of a public line, and according to an identification signal sent from the telephone And a software that has a connection function for selecting whether the telephone is connected to the Internet or a public line, and a VOIP-compatible voice processing function that performs voice processing for connecting to the Internet. Yes.
The VOIP adapters 21 and 22 have an Internet modem function for connecting a telephone and an Internet service provider.
A telephone can be connected to the VOIP adapters 21 and 22 via an in-house LAN such as a company.

For the Internet modem function, a terminal adapter or ISDN router is used to connect via an ISDN line, an ADSL modem or ADSL router is used,
There is a function such as connection by a cable modem for CATV. The cable modem function for CATV is a method of connecting to a wired TV broadcasting network and connecting to the Internet using a gap in the band of the CATV network. In general, a TV program transmitted from a CATV station is received, but the broadband connection of the optical cable is used to connect to the Internet.
The VOIP adapters 21 and 22 select whether to connect the telephone to an Internet network interface or to connect to a public telephone analog telephone interface in accordance with an identification signal sent from the telephone connected to the analog terminal. VOIP adapters 21 and 22 perform voice processing corresponding to VOIP when connecting a telephone or FAX to the Internet, send the voice to the network interface, and connect to the Internet circuit through the network connection terminal of the CATV modem. .
The VOIP adapters 21 and 22 connect a telephone or FAX directly to the public line when connecting to the public line.

In this way, the VOIP adapters 21 and 22 perform selective connection to connect the telephone to the Internet or to a public line according to the identification signal sent from the telephone.
Reference numeral 30 denotes an Internet circuit using a local IP address.
An Internet provider using a local IP address connects its own server and the user's CATV modem, etc., to an Internet network 30 of a high-speed digital line.
In addition, communication on the Internet network is realized by connecting to other Internet service providers via a dedicated line.
Reference numeral 40 denotes a local IP address VOIP server. The VOIP server for the local IP address has a data table of a telephone number (user ID) assigned to each VOIP adapter 21, a Mac address for device identification, and a local IP address of the VOIP adapter, and the telephone number (user ID) and VOIP.
It has a gatekeeper function that manages the correspondence table between the Mac address of the adapter device identification and the local IP address.

FIG. 2 shows the configuration of the data table of the local IP address VOIP server 40. As shown in FIG. 2, the data table of the local IP address VOIP server includes the phone numbers (user IDs) of all VOIP adapters managed by the local IP address VOIP server and the local VOIP adapters assigned by the provider. Mac of IP address and device identification
When the address is registered in pairs and the destination telephone number is input to this server, the local IP address of the destination VOIP adapter and the Mac address for device identification can be easily obtained by searching this data table. It has a configuration that can be.
The local IP address on the WAN side is assigned to the connected VOIP adapter. However, even if the Internet connection is always connected, the new local IP address on the WAN side is restored when the connection is resumed after interruption. Is assigned, or a Mac address for device identification is assigned, the update process is performed by the automatic update program of the VOIP adapter and the VOIP server 40 for the local IP address.
The central processing unit of the local IP address VOIP server 40 receives the command of the control program in the main memory and receives the VOIP received from the VOIP adapter.
Read the adapter packet. The packet includes a telephone number, an updated IP address on the WAN side, and a Mac address for device identification. The central processing unit receives a command from the control program in the main memory, searches the data table with the telephone number of the Internet telephone device, and sets the WAN side IP address corresponding to the corresponding telephone number as the new WAN side IP address, Update with Mac address of device identification.

Reference numeral 50 denotes an Internet circuit network using a global IP address.
An Internet provider using a global IP address connects its own server and a user's Internet modem, etc. via the Internet circuit network 50, and connects to another Internet service provider via a dedicated line, thereby communicating on the Internet circuit network. Is realized.
Reference numeral 60 denotes a VOIP server provided in the Internet circuit network 50. VO
The IP server 60 includes a telephone number (user ID) assigned to each VOIP adapter 22 connected to the Internet network 50, a data table of a global IP address of the VOIP adapter, and a VOI for a local IP address.
It has a global IP address of the P server 40 and its data table, and has a gatekeeper function for managing a correspondence table for a telephone number (user ID) and a global IP address of the VOIP adapter.
Therefore, the latest data table of the VOIP server 40 is mirror copied to the VOIP server 60.

FIG. 3 shows the configuration of the data table of the VOIP server 60.
As shown in FIG. 3, the data table of the VOIP server includes telephone numbers (user IDs) of all VOIP adapters 22 managed by the VOIP server,
The global IP address of the VOIP adapter assigned by the provider, the Mac address for device identification, the global IP address of the VOIP server 40 for the local IP address, and the telephone numbers of all VOIP adapters managed by the VOIP server for the local IP address (users) ID), the local IP address of the VOIP adapter assigned by the provider, and the Mac address of the device identification are registered in pairs, and when the destination telephone number is input to this server, by searching this data table, Global IP address of the destination VOIP adapter 22 or VOIP server 40 for local IP address,
The phone number (user ID) of the VOIP adapter and the Mac address for device identification can be easily obtained.
The global IP address on the WAN side is the connected VOIP adapter 22
Assigned to the Internet, but even if it ’s an always-on Internet connection,
When a new global IP address on the WAN side is assigned when the connection is resumed after interruption, or when a Mac address for device identification is assigned,
The update process is performed by the automatic update program of the VOIP adapter and the VOIP server 60.

The central processing unit of the VOIP server 60 receives a command from the control program in the main memory, and reads the VOIP adapter packet received from the VOIP adapter 22. The packet includes a telephone number, an updated IP address on the WAN side, and a Mac address for device identification. The central processing unit receives a command from the control program in the main memory, searches the data table with the telephone number of the Internet telephone device, and sets the IP address on the WAN side corresponding to the corresponding telephone number to the new WAN.
The IP address is updated with the Mac address of the device identification.
Reference numeral 70 denotes a public telephone analog telephone network. Each telephone 11 and 12 is V
It is also connected to an analog telephone network 70 of a public line via OIP adapters 21 and 22.
The operation of the Internet telephone connection system using the local IP address of the present invention configured as described above will be described below.
In the Internet telephone connection system using the local IP address according to the present invention, the telephone 11 connected to the Internet network 30 for the local IP address.
Can be used as an Internet calling device.
An example of a processing procedure from a call request to connection of the telephone 11 in the case of performing an Internet call in the Internet telephone connection system using the local IP address of the present invention will be described using the connection flowchart of FIG.

In the Internet telephone connection system using the local IP address of the present invention, the telephone number (user ID) for connecting to the Internet telephone is:
When using the telephone number of the public telephone line attached to the Internet telephone device as it is and connecting to the public telephone line network to make a call, dial the number that identifies the Internet and the public telephone before dialing the other party's public telephone number. The telephone number of the telephone is dialed to distinguish between the Internet telephone and the telephone using the public telephone network.
* Dial When the caller makes an Internet call from the telephone device 11 connected to the Internet network of the local IP address, the other party's telephone number (user ID)
"Dial". For example, dial 03-1234-5678.
* Outgoing The VOIP adapter 21 connected to the telephone 11 of the user A “sends” an Internet call request to the directory server system of the local IP address VOIP server 40.
The outgoing data of the call request of the VOIP adapter 21 includes the telephone number (user ID) of the other user B, the telephone number (user ID) of the user A, a Mac address identifying a device connected to the Internet, and VOIP. Adapter 2
1 local IP address data.
The outgoing data of the VOIP adapter 21 is notified to the server 40 by transmitting to the IP address of the local IP address VOIP server 40 connected to the local IP address Internet circuit 30 through the Internet modem.

* Search for a partner by VOIP server for local IP address VO for local IP address that received a call request of VOIP adapter 21
The central processing unit of the IP server 40 receives the instruction of the control program in the main memory, and reads the received call request transmission data. The outgoing data is user B ’s V
OIP adapter phone number (user ID) and user A phone number (user ID), WAN IP address, VOIP adapter 20 local I
It consists of data such as a P address and a Mac address for device identification. The central processing unit retrieves the data of the telephone number indicated in the outgoing data from the registered data table according to the instruction of the control program in the main memory.
* When the central processing unit of the VOIP server 40 for calling the local IP address of the other party by the VOIP server for the local IP address searches the data table and identifies data that matches the user B telephone number, the central processing unit reads the data from the data table and The IP address on the WAN side corresponding to the phone number, the IP address of the VOIP adapter, and the Mac address for device identification
This is used to “connect” to “call” the user B's VOIP adapter through the local IP address Internet circuit 30.
The VOIP adapter of user B who has received the “call” is the telephone number (user ID) of user B, the corresponding IP address on the WAN side, the IP address of the VOIP adapter, and the telephone number of user A who is the call request destination ( The user ID) is returned to the local IP address VOIP server 40 to make a “response” (take the handset). The server 40 transfers the reply data from the VOIP adapter of the user B to the VOIP adapter 21 of the sender user A, thereby establishing a call with the other party.

* Originating from the local IP address VOIP server When the local IP address VOIP server 40 searches the data table and there is no registered telephone number (user ID), the Internet of the VOIP adapter 21 is used. Call request to Internet network 5
“Send” to the directory server system of the VOIP server 60 through 0.
The outgoing data of the call request of the VOIP adapter 21 includes the telephone number (user ID) of the other user B, the telephone number (user ID) of the user A, a Mac address identifying a device connected to the Internet, and VOIP. Adapter 2
0 local IP address data.
The outgoing data of the VOIP adapter 21 is notified to the VOIP server 40 by transmitting to the IP address of the local IP address VOIP server 40 connected to the local IP address Internet circuit 30 through the Internet modem.
* Retrieval of the other party by the VOIP server The central processing unit of the VOIP server 60 that has received the call request of the VOIP adapter 21 receives the instruction of the control program in the main memory, and reads the transmission data of the received call request. The outgoing data is data such as the telephone number (user ID) of user B's VOIP adapter and the telephone number (user ID) of user A, the IP address on the WAN side, the local IP address of the VOIP adapter 21, and the Mac address for device identification. It is composed of The central processing unit retrieves the data of the telephone number indicated in the outgoing data from the registered data table according to the instruction of the control program in the main memory.

* When the central processing unit of the calling VOIP server 60 of the other party of the VOIP server searches the data table and identifies data that matches the user B telephone number, it reads from the data table,
The WAN side IP address corresponding to the user B's telephone number, the IP address of the VOIP adapter, and the Mac address of the device identification are converted into the VOIP adapter 22 of the other party B of the call through the Internet network 50 using this. “Connect” and “Call”.
The VOIP adapter of user B who has received the “call” is the telephone number (user ID) of user B, the corresponding IP address on the WAN side, the IP address of the VOIP adapter, and the telephone number of user A who is the call request destination ( User ID) V
By replying to the OIP server 60, a "response" is made (takes the handset).
The VOIP server 60 transfers the reply data from the user B's VOIP adapter 22 to the caller's VOIP adapter 21 through the local IP address VOIP server 40 and the local IP address Internet circuit 30 to establish a call with the other party.
* Returning connection request data from the VOIP server When the VOIP server 60 does not detect data matching the user B telephone number as a result of searching the data table, the local IP to which the connection request data has been transferred.
The connection request data is returned to the VOIP adapter 21 connected to the telephone that is the Internet call request source via the address VOIP server 40.
When the connection request data of the telephone number (user ID) is returned, the VOIP adapter 21 connected to the Internet call requesting telephone determines that the telephone is a non-participating telephone and indicates that the other party's number is not registered. Is returned to user A who is the call request destination.
When this guidance is received, the telephone number of the other party's public telephone is redialed, connected to the public telephone line network, and a call is made through the public telephone network.

Next, the case where user B makes an Internet call from the telephone device 12 connected to the Internet network to the user A of the telephone device 11 connected to the Internet network of the local IP address will be described with reference to the flowchart of FIG. I will explain.
When a telephone call is made from the telephone device 12 connected to the Internet circuit network to the telephone device 11 connected to the Internet circuit network of the local IP address, the user B, like the user A, has a telephone number (user ID). ). For example, dial 03-2341-6785.
* Sending The VOIP adapter 22 connected to the telephone 12 of the user B “sends” an Internet call request to the directory server system of the VOIP server 60.
The outgoing data of the call request of the VOIP adapter 22 includes the telephone number (user ID) of the other user A, the telephone number (user ID) of the user B, a Mac address identifying a device connected to the Internet, and VOIP. Adapter 2
2 is a global IP address data.
The outgoing data of the VOIP adapter 22 is notified to the server 60 by sending it to the IP address of the VOIP server 60 connected to the Internet network 50 through the Internet modem.

* Retrieval of the other party by the VOIP server The central processing unit of the VOIP server 60 that has received the call request of the VOIP adapter 22 receives the instruction of the control program in the main memory, and reads the transmission data of the received call request. Outgoing data is based on data such as the telephone number (user ID) of user A's VOIP adapter and the telephone number (user ID) of user B, the IP address on the WAN side, the IP address of VOIP adapter 22, the Mac address for device identification, etc. It is configured. The central processing unit retrieves the data of the telephone number indicated in the outgoing data from the registered data table according to the instruction of the control program in the main memory.
* Calling by VOIP server When the central processing unit of the VOIP server 60 searches the data table and identifies data matching the user A telephone number, it reads from the data table,
User B request data is transmitted to the local IP address VOIP server 40 using the WAN side IP address of the VOIP server 40 corresponding to the telephone number of the user A and the telephone number of the user A.
The VOIP server 40 for local IP address “connects” to the VOIP adapter 21 of the other party A through the local IP address Internet network 30 and “calls” in response to user B's request data.
The VOIP adapter of the user A who has received the “call” is the telephone number (user ID) of the user A, the IP address of the WAN side corresponding to the user A, the IP address of the VOIP adapter, and the telephone number of the user B of the call request destination ( The user ID) is returned to the VOIP server 60 via the local IP address VOIP server 40 to “response” (receive the handset). The VOIP server 60 establishes a call with the other party by transferring the reply data from the VOIP adapter 21 of the user A to the VOIP adapter 22 of the user B of the caller.

As a result of searching the data table, the VOIP server 60 returns connection request data to the VOIP adapter 22 connected to the Internet call request source telephone if data matching the user A telephone number is not detected.
When the connection request data of the telephone number (user ID) is returned, the VOIP adapter 22 connected to the Internet call requesting telephone determines that the telephone is a non-subscriber telephone and indicates that the other party's number is not registered. Is returned to the user B as a call request destination.
When you receive this guidance, redial the phone number of the other party's public phone,
A call is made through a public telephone network connected to a public telephone network.
In this way, it is possible to make an Internet call from a telephone connected to an Internet circuit using a global IP address to a telephone connected to an Internet circuit using a local IP address.
In the Internet telephone system using the local IP address of the present invention,
1. The local IP address VOIP server 40 controls the call between the telephones corresponding to the telephone number (user ID) registered in the data table managed by the local IP address by the method described above in each VOIP server. To be implemented.
2. When the local IP address VOIP server 40 issues a connection request to a telephone corresponding to a telephone number (user ID) not registered in its own data table, the local IP address VOIP server 40 sends the connection request to the Internet network. VOIP
Transfer to server 60.
3. When the connection request data of the telephone number (user ID) is transferred from the VOIP server 40 for the local IP address, the VOIP server 60 refers to the data table managed by the telephone number (user ID) and transfers it. It is searched whether the connection request data of the telephone number (user ID) that has been registered is registered in its own data table.

Four. As a result of the search, when the connection request data of the transferred telephone number (user ID) is detected as a result of the search, the VOIP server 60 transfers the connection request data of the telephone number (user ID) to the VOIP adapter. At the same time, the connection is made to the telephone number (user ID) transferred via the VOIP server 40 for local IP address that has transferred the connection request data of the telephone number (user ID).
Five. As a result of the search, if the VOIP adapter in which the connection request data of the transferred telephone number (user ID) is registered is not detected, the VOIP server 60 transfers the connection request data to the local IP address VOIP server 40.
The connection request data is returned to the VOIP adapter of the telephone number (user ID) via.
6． The VOIP adapter to which the connection request data is returned is the phone number (user ID
) Is returned, the telephone number (user ID) is redialed to a general public line.
In this way, the VO that transmitted the connection request data of the telephone number (user ID)
A telephone connected to the IP server and a telephone as a connection request destination connected to the VOIP server are connected via the Internet circuit network to perform a call.
As described above, the VOIP adapter used in the Internet telephone system using the local IP address according to the present invention identifies an Internet telephone and a general telephone by checking an identification signal. By sending the public telephone number used as the user ID to the central processing unit of the local IP address VOIP server 40, the local IP address VOIP server 40 searches the registered data table.
If there is a telephone number that matches the telephone number, the public telephone line is connected between the telephones connected to the Internet provider by calling the IP address of the destination VOIP adapter registered corresponding to the telephone number. You can make a call without using.

If the VOIP adapter checks the identification signal and determines that it is not an Internet phone, or if the VOIP server 60 searches the registered data table and there is no match with the phone number, the VOIP adapter It is possible to make a call with a telephone connected to a public telephone line via the telephone, and it is possible to make a call with the same operability as a conventional subscriber telephone regardless of whether the caller or callee is a subscriber telephone or an Internet telephone.
In the Internet telephone system using the local IP address of the present invention,
Even in a network service using a local IP address, if the other party has an Internet phone device, the call fee is only the Internet connection fee. If the transfer function is used, the remote Internet phone devices should be used in combination. Can save a lot of long distance charges. For example, a branch office B of an A company using the Internet using a local IP address is in the United States,
When calling a business partner in the United States, a high international fee is usually incurred. However, an Internet telephone device with a transfer destination designation function is installed at the company A and the branch B, and the branch B
By using the Internet until the branch B's Internet telephone device is set to transfer to an American business partner, a telephone charge can be made from a company A to a US business partner with a call charge only in the mainland United States. You can save a lot.

  The present invention can be used in the telecommunications industry.

It is explanatory drawing which shows the structural example of one Example of the internet telephone system using the local IP address of this invention of this invention. 2 shows the structure of a data table of a VOIP server using a local IP address. 2 shows the structure of a data table of a VOIP server. It is the flowchart which showed the example of the process sequence from the telephone call request of a telephone set to a connection in the case of performing an internet call from the network using a local IP address. It is the flowchart which showed the example of the process sequence from the telephone call request of a telephone set to a connection in the case of performing an internet call from the network using a global IP address to the network using a local IP address.

Explanation of symbols

10, 11 ... Telephones used for public lines,
20, 21 ... VOIP adapter,
30 ... Internet network using local IP address,
40: VOIP server for local IP address,
50: Internet network using global IP address,
60 ... VOIP server 70 ... Analog telephone network of public line,

Claims (7)

A VOIP adapter that switches the telephone to the public telephone line and the Internet circuit according to the identification signal is connected to the network of the Internet provider using the local IP address, and the Internet provider using the local IP address , Having a data table that is set by pairing the telephone number that identifies the VOIP adapter and the corresponding local IP address,
A local IP address VOIP server with a gatekeeper function that manages telephone number and IP address data is provided.
A data table in which a telephone number for identifying a telephone connected to a VOIP adapter connected to an Internet network having a global IP address and a corresponding global IP address in the Internet circuit network; Global IP address and local I of VOIP server for local IP address
VOIP connected to provider's internet circuit using P address
With a phone number data table that identifies the phone connected to the adapter,
Established a VOIP server with a gatekeeper function to manage data of telephone numbers and global IP addresses,
When the telephone number of the connection destination is specified by accessing the VOIP server for the local IP address from the telephone through the VOIP adapter, and the specified connection destination telephone number exists in the data table of the VOIP server for the local IP address, the connection destination Connect to a phone that has a local IP address of
If the specified connection destination telephone number does not exist in the data table of the local IP address VOIP server, the connection request is transferred from the local IP address VOIP server to the VOIP server connected to the Internet network,
If the destination phone number specified in the data table of the VOIP server exists, connect to the phone set with the destination IP address.
An internet telephone connection system using a local IP address in which a telephone is connected via a public telephone line via a VOIP adapter when the telephone number specified in the data table of the VOIP server does not exist. It has a terminal to which the telephone is connected, an Internet network interface, and an analog telephone public line interface. The telephone is connected to the Internet according to an identification signal sent from the telephone, or connected to the public telephone line. A VOIP adapter having a function of selecting and connecting to VOIP that performs voice processing for connection to the Internet, a telephone connected to the VOIP adapter, and the Internet for connecting the VOIP adapter to the Internet network A modem is provided in the internet circuit of the provider using the local IP address, connected to the internet circuit network with a global IP address, and connected to the internet circuit of the provider using the local IP address. VOIP for a local IP address that has registration data that has a pair of a telephone number that identifies the VOIP adapter and a local IP address corresponding to this telephone number, and that has a gatekeeper function for managing the registration data of the telephone number and the local IP address server,
A data table that is provided in the Internet circuit network and that is a pair of a telephone number that identifies a telephone connected to a VOIP adapter connected to the Internet circuit network having a global IP address and a corresponding global IP address;
VOI connected to the Internet circuit of the provider using the global IP address of the VOIP server for the local IP address and the local IP address
A VOIP server having a phone number data table for identifying the telephone connected to the P adapter, and having a gatekeeper function for managing the data of the phone number and the global IP address;
By accessing a VOIP server for a local IP address through a VOIP adapter from a telephone of an internet circuit using a local IP address and specifying a telephone number of a connection destination, the telephone of the internet circuit using the local IP address as the designated telephone number If the telephone number is not the Internet circuit telephone using the local IP address, the VOIP server for the local IP address connects the telephones via the Internet circuit using the local IP address. Access the VOIP server of the Internet network from the VOIP server for the local IP address,
If the telephone number registered in the VOIP server is searched and the telephone is an internet network telephone, the internet circuit using the local IP address is connected to the telephone via the internet network.
A telephone connected to an Internet provider using a local IP address can be used to make a call between an Internet circuit using a local IP address and a telephone connected to the Internet provider without using a public telephone line. An internet telephone connection system using a local IP address that allows a telephone connected to a public telephone line via a VOIP adapter to make a call. 3. The VOIP adapter according to claim 1 or 2, wherein the VOIP adapter has an Internet modem function for connecting a telephone using an ISDN line, a connection using an ADSL modem or an ADSL router, a connection using a cable modem for CATV, or a connection using an optical fiber. An internet telephone connection system using a local IP address. In claim 1 or claim 2, the VOIP adapter has an in-house LA such as a company.
An internet telephone connection system using a local IP address, characterized in that a telephone is connected via N. 3. Internet telephone connection using a local IP address according to claim 1 or 2, wherein the telephone number for identifying the VOIP adapter is a telephone number of a public telephone line of a telephone connected to the VOIP adapter. system. 3. The identification signal between the public telephone line and the Internet network according to claim 1 or 2, wherein a specific button is pressed or an identification number is added before a telephone number for identifying a VOIP adapter. Internet telephone connection system using local IP address. 3. The local IP according to claim 1, wherein an IP address assigned by a provider connected to the VOIP adapter and an IP address of the VOIP adapter are used as an IP address of the Internet for specifying the VOIP adapter. Internet telephone connection system using addresses.

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