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Cost negotiation for communication sessions

  • US 7,362,853 B2
  • Filed: 12/16/2002
  • Issued: 04/22/2008
  • Est. Priority Date: 12/16/2002
  • Status: Expired due to Fees
First Claim
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1. A method of negotiating a cost sharing formula associated with a communication service between a plurality of participants, the service being facilitated using the Session Initiation Protocol, the method comprising the steps of:

  • sending a Session Initiation Protocol (SIP) message from a terminal used by a first of the participants to terminals used by each other participant, the message containing a cost sharing request;

    at each terminal, receiving said cost sharing request, processing the request using predefined cost sharing rules or by receiving a user input relating to the request, and sending a SIP response message to the first participants terminal containing a result; and

    ,configuring one or more SIP servers to intercept SIP messages for the purpose of determining the negotiated cost sharing formula, whereby the participants are charged in accordance with the formula.

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