Fall back using mobile device assisted terminating access domain selection

摘要

Fall back using mobile device assisted terminating access domain selection is provided. A network entity forwards an invitation to a session to a mobile device. Session has packet switched bearers for media. Mobile device replies with a rejection of the invitation and a request for network entity to hold the session. Rejection is based on mobile device determining circuit switched bearers should be utilized. Mobile device sends a circuit switched call and network entity correlates the circuit switched call with the session. A dialog is set up over circuit switched domain bearers and Internet Protocol Multimedia Subsystem bearers.

主权项

1. A method for fall back procedures in a communications environment, comprising:
forwarding to a first mobile device an invitation for a session, the invitation is from a second mobile device and has packet switched bearers for media; holding the session as a function of a rejection to the invitation by the first mobile device based on a received Idle mode Signaling Reduction indication; receiving a circuit switched call from the first mobile device; correlating the circuit switched call with the session; and establishing a communication between the first mobile device and the second mobile device over circuit switched domain bearers and Internet Protocol Multimedia Subsystem (IMS) bearers.