×

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
First Claim
Patent Images

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.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×