Patent ID: 8135124

Claim:
A method to be executed at least in part in a computing device for cancelling forked call requests in an integrated telephony system, the method comprising: receiving a call request for a subscriber of the integrated telephony system; determining endpoints associated with the subscriber that are to be notified about the call request; providing the call request to the endpoints; maintaining a minimal dialog state for a period of time to check if a call session, associated with the call request, is going to be terminated immediately and to determine, in real time, the identity of one of the endpoints picking up a call to the subscriber; receiving an indication of an action from the one of the endpoints; and in response to the indication of the action, providing a cancellation notification to the remaining endpoints associated with the subscriber, wherein the cancellation notification includes information associated at least with the action, the information associated with the action being provided through a Session Initiated Protocol (SIP) header, the information comprising an identity of a user providing the initiation of the action, a type of the action and a policy associated with the action if the action is based on an automatic policy, the identity of the user being included in the SIP header as a SIP Uniform Resource Identifier (URI), the type of the at least one action being inserted as a parameter into the SIP header and the policy being identified as another parameter in the header.