Patent ID: 8374172

Claim:
A non-transitory computer-readable storage medium comprising computer instructions which, responsive to being executed by a Serving Call Session Control Function (S-CSCF) operably coupled to an Internet Protocol Multimedia Subsystem network, causes the S-CSCF to perform operations comprising: receiving at the S-CSCF an INVITE message associated with a call to a first communication device from a second communication device; transmitting from the S-CSCF the INVITE message to an application server and to the first communication device, the application server being operably connected with an Interactive Television (ITV) system; receiving at the S-CSCF a determination of satisfaction of an identification threshold performed by the application server based on the INVITE message; and transmitting from the S-CSCF a NOTIFY message to a set top box operably connected with the ITV system when the second communication device satisfies the identification threshold, the NOTIFY message comprising identification information associated with the second communication device.