Method and apparatus for interworking between internet protocol (IP) telephony protocols

CAFC
  • US 6,885,658 B1
  • Filed: 02/18/2000
  • Issued: 04/26/2005
  • Est. Priority Date: 06/07/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A call server comprising:

  • (a) a fist protocol agent for communicating with a first internet protocol (IP) telephony device according to a first IP telephony protocol;

    (b) a second protocol agent for communicating with a second IP telephony device according to a second IP telephony protocol; and

    (c) an interworking agent for providing functions usable by the first and second protocol agents to communicate with each other according to a third protocol, the functions provided by the third protocol being a superset of functions provided by the first and second IP telephony protocols, said interworking agent further adapted to determine that a first parameter associated with the first IP telephony protocol does not map to the second IP telephony protocol and communicating first parameter to the second protocol agent without alteration.

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