Patent ID: 8165573
Filing Date: 2012-04-24
Classification: H04L,H04W

Abstract:
1. A User Equipment (UE) device operable in connection with an Internet Protocol (IP) Multimedia Subsystem (IMS) network, comprising: a component configured to receive an incoming call request for a mobile terminated call from a calling party, the incoming call request comprising at least one USSD message, wherein the incoming call request includes an IP Multimedia Routing Number (IMRN), an A-party ID of the calling party, and an indication that said incoming call request is for delivery of said mobile-terminated incoming call in a circuit-switched network; a component configured to store call information received in said incoming call request, said call information comprising at least said IMRN; and a component configured to initiate a Mobile-Originated (MO) call process towards a network node with said IMRN as a destination number, wherein said MO call process is operable to effectuate an access leg with said network node with respect to said MT call.