Patent ID: 8689317

Claim:
A dialog event route node (DERN), comprising: at least one processor; and memory storing computer executable instructions, that when executed by the at least one processor cause the at least one processor to perform the steps of: receiving a Session Invitation Protocol (SIP) request at a network communicated between a sending communicator and a destination communicator; determining if the SIP request contains user identification information identifying one or both of the sending communicator and the destination communicator; searching one or more active surveillance subscriptions associated with a dialog event package to identify a surveillance subscription corresponding to one of the sending communicator and the destination communicator identified by the user identification information; in a response to identifying a surveillance subscription that corresponds to one of the sending communicator and the destination communicator identified by the user identification information, generating a notify request comprising an event header indicating the dialog event package and a body containing at least a communicator identifier corresponding to the one of the sending communicator and the destination communicator, and a dialog identifier identifying a communication session associated with the SIP request; and reporting the notify request to a third-party surveillance server.