Patent ID: 8345666

Claim:
A method comprising: receiving, by a computing device, a call, for a user device associated with an Internet protocol multimedia subsystem (IMS) network, and a mobile directory number (MDN) associated with the user device; retrieving, by the computing device and from a home location register (HLR), an address of a wireless intelligent network (WIN) termination trigger service control point (SCP); sending, by the computing device and based on the address of the WIN termination trigger SCP, a first message, that includes the MDN, to the WIN termination trigger SCP; receiving, by the computing device and from the WIN termination trigger SCP, a second message that includes steering digits and the MDN; generating, by the computing device and based on the second message, a third message that is to be routed to a media gateway control function/media gateway (MGCF/MGW) of the IMS network, the third message including a called party number that is set to the MDN, and the third message omitting the steering digits that are included in the second message and are used to route the third message to the MGCF/MGW; and routing, by the computing device and based on the steering digits, the third message to the MGCF/MGW, the MGCF/MGW being to further process the call.