Patent ID: 8351461

Claim:
A method for providing a network based fixed mobile convergence service via a communication network, comprising: receiving a network based fixed mobile convergence call request originating from a non-session initiation protocol network based fixed mobile convergence endpoint device; and processing the network based fixed mobile convergence call request using a single hosted network based fixed mobile convergence application server, wherein the processing of the network based fixed mobile convergence call request comprises: assigning an internet protocol multimedia subsystem routing number to temporarily replace an original dialed number of the network based fixed mobile convergence call request; storing a mapping of the internet protocol multimedia subsystem routing number to the original dialed number; associating a received session initiation protocol invite message from an interrogating call session control function network element with the network based fixed mobile convergence call request; and sending a modified session initiation protocol invite message with a from header set to a public user identifier associated with a user of the non-session initiation protocol network based fixed mobile convergence endpoint device, a private asserted identity header set to a phone number of the non-session initiation protocol endpoint device, and a request uniform resource identifier header set to the original dialed number to the interrogating call session control function network element for processing.