KR20030043888A - VoIP call setup path management system and method with PSTN, VoIP Dual mode subcriber device and VoIP switch - Google Patents

Abstract

PURPOSE: A VoIP(Voice over Internet Protocol) Internet phone service system by using a combined PSTN(Public Switched Telephone Network) and VoIP phone and an Internet phone service method using the system are provided to automatically exchange the existence of a VoIP phone function, a VoIP service provider and an ID of the other party between phone terminals or exchanges, so as to enable VoIP incoming through a PSTN phone number after one connection of a PSTN phone between the terminals having both VoIP and PSTN functions. CONSTITUTION: A VoIP Internet phone terminal or a subscriber exchange requests phone connection to a corresponding PSTN provider by using a PSTN phone number, if a connection unavailable response is received for a phone connection request sent to a VoIP Internet phone service provider. An exchange of the VoIP Internet phone service provider requests phone connection to a PSTN provider issuing a phone number that is a connection object by using a PSTN phone number of a receiving party received from a terminal of an originating party, if a connection unavailable response is received for a phone connection request sent to a VoIP Internet phone service provider of the receiving party. And the exchange of the VoIP Internet phone service provider receives VoIP connection information linked with a PSTN phone number, in a method of updating the information periodically or whenever a phone connection request of an originating party is received from a system of another VoIP Internet phone service provider or the third VoIP connection information provider, and transmits VoIP connection information of an internal subscriber to another VoIP Internet phone service provider or the third VoIP connection information provider periodically or upon every change.

Description

VoIP call setup system and method with PSTN, VoIP dual mode subcriber device and VoIP switch}

VoIP Internet calls can be made free of charge between Internet phones, and when you make a call using an existing PSTN or mobile phone, you must pay the cost including the cost of the connection with the existing voice telephone service provider and the cost of the service provider. .

In order to reduce the cost of VoIP VoIP calls made by the phone number used by the user and to handle outgoing calls through the Internet, an Internet phone terminal or an internal exchange was connected to both the Internet and the PSTN.

However, in order to make calls between cheaper VoIP phones, the other party had to make a call by receiving an IP for receiving a VoIP call or a separate identification number issued by an Internet telephone company to which the other party subscribed.

Or by using a VoIP connection to the phone number registered in the terminal or the company exchange to reduce the need to use a separate identification number or IP address.

However, this remains a hassle because the caller still has to enter the incoming telephone number into the terminal or corporate exchange at the same time as the IP telephone, and there is a lot of speed in the propagation of the incoming service using the existing telephone number of the VoIP telephone. The problem remains.

The technical problem to be solved by the present invention is to automatically exchange the VoIP telephone function of the call party and the identification ID assigned by the VoIP service provider and the VoIP service provider during a telephone terminal or exchange period having both the VoIP call function and the PSTN incoming function at the same time. In this case, after a single PSTN telephone connection is established between terminals having both VoIP and PSTN functions, a VoIP call is made using a PSTN telephone number.

The present invention is connected to a VoIP Internet phone and a PSTN phone at the same time, when receiving a PSTN call through the data communication with the other terminal or exchange using the connected PSTN channel, whether the VoIP function of the other phone or exchange and the Internet telephone service provider information Exchanges terminal information for exchanging identification numbers, etc. assigned by the Internet telephone service provider, records the received VoIP Internet telephone connection information in a storage device, or transmits the information to a telephone number database of an Internet telephone service provider of the Internet through the Internet; When calling, it searches the database recorded in its storage device with the phone number inputted by its own input device or other terminal connected to it, and if there is recorded VoIP connection information, it is sent to the VoIP Internet service provider to which it is subscribed. Receiver's Internet Phone Service Provider Request the call connection by sending the information and the ID issued by the recipient's Internet telephone service provider to the receiving terminal.If there is no recorded VoIP connection information, the voice telephone connection can be made to the VoIP Internet telephone provider to which the subscriber subscribed using only the PSTN number. With a requesting PSTN dual-purpose VoIP Internet phone terminal or subscriber exchange,

When receiving a telephone connection request by PSTN phone number from VoIP internet phone terminal or other exchange, it searches its database and checks the VoIP connection information of the corresponding phone number to determine whether it is a terminal or exchange capable of VoIP connection. Request the VoIP internet phone connection from the receiving Internet phone service provider recorded in the base. If it is not possible or there is no record, ask the PSTN service provider who issued the phone number to which you want to connect. It checks whether the terminal is equipped with VoIP function through data communication using the connected PSTN channel, and if the terminal is VoIP enabled, it sends and receives VoIP connection information of the calling telephone to the receiving terminal through data communication with the receiving terminal. Receiving side of VoIP Internet connection information Stores received from the group, and comprising a VoIP Internet phone service providers to exchange VoIP is a non-terminal stores the VoIP is not possible information,

VoIP internet phone service system using PSTN combined VoIP phone and internet phone service method using the system.

The VoIP Internet phone terminal or subscriber exchange,

When a call connection request sent to a VoIP Internet telephone service provider is received due to a subscriber's termination or a problem with the line condition, a VoIP connection requesting a telephone connection to the PSTN service provider subscribed to using the PSTN telephone number. Internet phone terminal or subscriber switch.

The VoIP Internet telephone service provider exchange,

When the telephone connection request sent to the receiving VoIP Internet telephone service provider is not answered due to the subscriber's unsubscribing or the problem of the line status, the receiving party's telephone number is received by using the receiving PSTN telephone number received from the calling party's terminal. VoIP Internet telephony service provider exchange that requests a telephone connection from the PSTN provider who issued the number.

The VoIP Internet telephone service provider exchange,

Receives the VoIP connection information associated with the PSTN phone number by updating it regularly or whenever receiving a call request from the calling party from another VoIP internet service provider or a third party VoIP connection information providing system. VoIP Internet telephony service provider exchange to send VoIP connection information to other VoIP internet telephony service providers or systems of third party VoIP connection information providers on a regular or altered basis.

According to the present invention, even if an incoming number is not assigned to a VoIP phone, not only the incoming and outgoing call using the PSTN phone number is possible, but also the VoIP connection information is automatically distributed without the need to transfer VoIP connection information among users. By accelerating its spread, social costs can be greatly reduced.

Claims (4)

When receiving a PSTN call by being connected to VoIP Internet phone and PSTN phone at the same time, through the data communication with the other terminal or exchange using the connected PSTN channel, the VoIP function of the other phone or exchange and the information of the Internet phone service provider and Internet phone service Exchange terminal information for exchanging identification numbers, etc. assigned by the provider, record the received VoIP Internet telephony connection information in the storage device or transmit it to the telephone number database of your Internet telephone service provider via the Internet. The phone number entered by the user's input device or other terminal connected to it is searched the database recorded in its storage device. Receive and receive telephone service provider information PSTN requesting a call connection by sending the ID issued by the recipient's Internet telephone service provider to the receiving terminal. With a telephone VoIP Internet telephone terminal or subscriber exchange, When receiving a telephone connection request by PSTN phone number from VoIP internet phone terminal or other exchange, it searches its database and checks the VoIP connection information of the corresponding phone number to determine whether it is a terminal or exchange capable of VoIP connection. Request the VoIP internet phone connection from the receiving Internet phone service provider recorded in the base. If it is not possible or there is no record, ask the PSTN service provider who issued the phone number to which you want to connect. It checks whether the terminal is equipped with VoIP function through data communication using the connected PSTN channel, and if the terminal is VoIP enabled, it sends and receives VoIP connection information of the calling telephone to the receiving terminal through data communication with the receiving terminal. Receiving side of VoIP Internet connection information Stores received from the group, and comprising a VoIP Internet phone service providers to exchange VoIP is a non-terminal stores the VoIP is not possible information, VoIP Internet Phone Service System Using PSTN Combined VoIP Phone and Internet Phone Service Method Using the System The VoIP Internet telephone terminal or subscriber exchange of claim 1, When a call connection request sent to a VoIP Internet telephone service provider is received due to a subscriber's termination or a problem with the line condition, a VoIP connection requesting a telephone connection to the PSTN service provider subscribed to using the PSTN telephone number. Internet phone terminal or subscriber switch. VoIP Internet telephone service provider switch of claim 1, When the telephone connection request sent to the receiving VoIP Internet telephone service provider is not answered due to the subscriber's unsubscribing or the problem of the line status, the receiving party's telephone number is received by using the receiving PSTN telephone number received from the calling party's terminal. VoIP Internet telephony service provider exchange that requests a telephone connection from the PSTN provider who issued the number. VoIP Internet telephone service provider switch of claim 1, Receives the VoIP connection information associated with the PSTN phone number by updating it regularly or whenever receiving a call request from the calling party from another VoIP internet service provider or a third party VoIP connection information providing system. VoIP Internet telephony service provider exchange to send VoIP connection information to other VoIP internet telephony service providers or systems of third party VoIP connection information providers on a regular or altered basis.