Patent ID: 7395085

Claim:
A method of attempting to notify a multi-mode mobile station of a requested communication session, said multi-mode mobile station having a first interface for wireless communication with a first wireless network and a second interface for wireless communication with a second wireless network, said method comprising: receiving a request from a requester to establish a communication session with said multi-mode mobile station; transmitting a first notification message to try to reach said multi-mode mobile station via said first wireless network, said first notification message providing notification of said request; waiting to receive a predetermined response from said multi-mode mobile station; if said predetermined response is not received within a predetermined period of time, transmitting a second notification message to try to reach said multi-mode mobile station via said second wireless network, said second notification message providing notification of said requests and if said predetermined response is received within said predetermined period of time but said multi-mode mobile station does not accept said communication session, providing said requestor with at least one alternate communication option.