Call processing message converter and message converting method in internet protocol telephony exchange system

• US 20030072301A1
• Filed: 10/10/2002
• Published: 04/17/2003
• Est. Priority Date: 10/13/2001
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ko, Chae-Ho
• Granted Patent: US 7,391,762 B2
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: H04L 65/103 in the network
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 7/128 Details of addressing, directories or routing tables

Abstract

The present invention relates to a call processing message converter and message converting method in an IP-PBX system, capable of controlling IP terminals equally to legacy terminals by transceiving user information with IP terminals. The message converter works best especially for the IP-PBX system, wherein the system includes: a hub connected to an Internet protocol (IP) network, having a plurality of LAN communication ports; user information interface connected to the LAN communication port of the hub for generating user information and for outputting the generated user information or for converting received exchange user information to an identifiable state to users; at least one IP terminal for performing VoIP function in conforming to a pre-designated data communication protocol procedure; IP driver connected to the LAN communication port of the hub for controlling Internet protocol endpoints; and IP-PBX, mounted with a database where telephone numbers of a legacy terminal and the plurality of IP terminals and corresponding terminal information, and an exchange interface and a gateway connected to the LAN communication port of the hub, respectively, for conducting call processing services corresponding to user information that is sent to the exchange interface and call connection information that is generated from the legacy terminal. The call processing message converter is built in the IP driver, and the converter analyzes an ARQ (Admission request) message transported from a terminating IP terminal, transports port information and digit information of the IP terminal to a call processing module inside of the IP-PBX, and transports a termination seizure message transported from the call processing module and user control information of a terminating IP terminal to a terminating terminal.

Claims

1. A call processing message converting method in an Internet protocol-private automatic branch exchange system, wherein the Internet protocol-private automatic branch exchange system comprising a hub connected to an Internet protocol network, having a plurality of local area network communication ports;

user information interface connected to the local area network communication port of the hub for generating user information and for outputting the generated user information or for converting received exchange user information to an identifiable state to users;

at least one Internet protocol terminals for performing voice over Internet protocol function in conforming to a pre-designated data communication protocol procedure;

Internet protocol driver connected to the local area network communication port of the hub for controlling Internet protocol endpoints; and

Internet protocol-private automatic branch exchange, mounted with a database where telephone numbers of a legacy terminal and the plurality of Internet protocol terminals and corresponding terminal information, and an exchange interface and a gateway connected to the local area network communication port of the hub, respectively, for conducting call processing services corresponding to user information that is sent to the exchange interface and corresponding to call connection information that is generated from the legacy terminal, the method comprising the steps of;

transporting an admission request message to a call processing module in the Internet protocol-private automatic branch exchange in correspondence to an inputted admission request message that includes port information transported from the originating Internet protocol terminal and digitized information corresponding to the other party'"'"'s telephone number;

transporting an admission confirm message to the originating Internet protocol terminal in response to a seizing message corresponding to a digit that is included in the admission request message from the call processing module;

transporting a setup message that is transferred from the originating Internet protocol terminal to a terminating Internet protocol terminal, and simultaneously transporting a setup response message to the originating Internet protocol terminal;

transporting an admission confirm message to the terminal Internet protocol terminal in response to the admission request message that is transported from the originating Internet protocol terminal, transporting an alert message that is transported from the terminating Internet protocol terminal to the originating Internet protocol terminal, and transporting a system identification information to the call processing module; and

forming an Internet protocol channel between the two Internet protocol terminals by transporting a connect message that is transported from the terminating Internet protocol terminal to the originating Internet protocol terminal and by transporting polarity to the call processing module.

2. The method as claimed in claim 1, further comprising the step of:

when a recovery complete message and a connect release confirm message is generated from the Internet protocol terminal, transporting a channel recovery complete message of a corresponding Internet protocol terminal to the call processing module inside of the Internet protocol-private automatic branch exchange.

3. A call processing message converter in an Internet protocol-private automatic branch exchange system, comprising:

a hub connected to an Internet protocol network, having a plurality of local area network communication ports;

a user information interface connected to the local area network communication port of the hub for generating user information and for outputting the generated user information or for converting received exchange user information to an identifiable state to users;

at least one Internet protocol terminal performing voice over Internet protocol function in conforming to a pre-designated data communication protocol procedure;

an Internet protocol driver connected to the local area network communication port of the hub for controlling Internet protocol endpoints; and

Internet protocol-private automatic branch exchange, mounted with a database where telephone numbers of a legacy terminal and the plurality of Internet protocol terminals and corresponding terminal information, and an exchange interface and a gateway connected to the local area network communication port of the hub, respectively, for conducting call processing services corresponding to user information that is sent to the exchange interface and corresponding to call connection information that is generated from the legacy terminal,

with the Internet protocol driver analyzing an admission request message transported from an originating Internet protocol terminal, transports port information and digit information of the Internet protocol terminal to a call processing module inside of the Internet protocol-private automatic branch exchange, and transports a termination seizure message from the call processing module and user control information of a terminating Internet protocol terminal to a terminating terminal.

4. The call processing message converter as claimed in claim 3, with the Internet protocol driver transporting a system identification to a call processing module inside of the Internet protocol-private automatic branch exchange, in response to an alert message from the terminating Internet protocol terminal.

5. The call processing message converter as claimed in claim 4, with the Internet protocol driver transporting a polarity message to a call processing module inside of the Internet protocol-private automatic branch exchange, in response to a connect message from the terminating Internet protocol terminal.

6. The call processing message converter as claimed in claim 5, with the Internet protocol driver transporting a polarity message to a call processing module inside of the Internet protocol-private automatic branch exchange, in response to a connect message from the terminating Internet protocol terminal.

7. The call processing message converter according to claim 3, with the Internet protocol driver transporting a channel recovery complete message to a call processing module inside of the Internet protocol-private automatic branch exchange, in response to a connect release request message from an originating Internet protocol terminal or a terminating Internet protocol terminal.

8. The call processing message converter according to claim 4, with the Internet protocol driver transporting a channel recovery complete message to a call processing module inside of the Internet protocol-private automatic branch exchange, in response to a connect release request message from an originating Internet protocol terminal or a terminating Internet protocol terminal.

9. The call processing message converter according to claim 5, with the Internet protocol driver transporting a channel recovery complete message to a call processing module inside of the Internet protocol-private automatic branch exchange, in response to a connect release request message from an originating Internet protocol terminal or a terminating Internet protocol terminal.

10. The call processing message converter according to claim 6, with the Internet protocol driver transporting a channel recovery complete message to a call processing module inside of the Internet protocol-private automatic branch exchange, in response to a connect release request message from an originating Internet protocol terminal or a terminating Internet protocol terminal.

11. A method, comprising:

transporting an admission request message to a call processing module in an Internet protocol-private automatic branch exchange in correspondence to an inputted admission request message that includes port information transported from an originating Internet protocol terminal and digitized information corresponding to a telephone number of another user;

transporting an admission confirm message to the originating Internet protocol terminal in response to a seizing message corresponding to a digit that is included in the admission request message from a call processing module;

transporting a setup message that is transferred from the originating Internet protocol terminal to a terminating Internet protocol terminal, and simultaneously transporting a setup response message to the originating Internet protocol terminal;

transporting an admission confirm message to the terminal Internet protocol terminal in response to the admission request message that is transported from the originating Internet protocol terminal, transporting an alert message that is transported from the terminating Internet protocol terminal to the originating Internet protocol terminal, and transporting a system identification information to the call processing module; and

forming an Internet protocol channel between the two Internet protocol terminals by transporting a connect message that is transported from the terminating Internet protocol terminal to the originating Internet protocol terminal and by transporting polarity to the call processing module.

12. The method as claimed in claim 11, further comprising the step of:

when a recovery complete message and a connect release confirm message is generated from the Internet protocol terminal, transporting a channel recovery complete message of a corresponding Internet protocol terminal to the call processing module inside of the Internet protocol-private automatic branch exchange.

13. An apparatus, comprising:

a first unit connected to an Internet protocol network, including a plurality of local area network communication ports;

a user information interface connected to the local area network communication port of the first unit for generating user information and for outputting the generated user information or for converting received exchange user information to an identifiable state to users;

an Internet protocol terminal performing voice over Internet protocol function in conforming to a pre-designated data communication protocol procedure;

an Internet protocol driver connected to the local area network communication port of the first unit for controlling Internet protocol endpoints, and Internet protocol-private automatic branch exchange, mounted with a database where telephone numbers of a legacy terminal and the plurality of Internet protocol terminals and corresponding terminal information, and an exchange interface and a gateway connected to the local area network communication port of the first unit, respectively, for conducting call processing services corresponding to user information that is sent to the exchange interface and corresponding to call connection information that is generated from the legacy terminal,

with the Internet protocol driver analyzing an admission request message transported from an originating Internet protocol terminal, transports port information and digit information of the Internet protocol terminal to a call processing module inside of the Internet protocol-private automatic branch exchange, and transports a termination seizure message from the call processing module and user control information of a terminating Internet protocol terminal to a terminating terminal.

14. The apparatus of claim 13, with the Internet protocol driver transporting a system identification to a call processing module, in response to an alert message from the terminating Internet protocol terminal.

15. The apparatus of claim 14, with the Internet protocol driver transporting a polarity message to a call processing module, in response to a connect message from the terminating Internet protocol terminal.

16. The apparatus of claim 15, with the Internet protocol driver transporting a polarity message to a call processing module, in response to a connect message from the terminating Internet protocol terminal.

17. The apparatus of claim 16, with the Internet protocol driver transporting a channel recovery complete message to a call processing module, in response to a connect release request message from an originating Internet protocol terminal or a terminating Internet protocol terminal.