Method for conserving resources during wireless handover of a dual mode mobile station

A method comprising:

• receiving a initial network entry signaling from a multi mode mobile device having a first session in a first wireless network wherein a session establishment is for a second session in a second wireless network supporting a different access network technology from the first network;
• determining if session establishment procedures for the second session is for deferred inter-technology handover to the second network while the multi mode mobile device has the first session ongoing in the first network;
• determining a Quality of Service requirements for a service supported by the multi-mode mobile device if the second session is for the deferred inter-technology handover, and
• completing the session establishment procedures for the second session when the determined service supported by the multi-mode mobile device includes at least one of QoS sensitive services and real-time services for the first session wherein after completion of the session establishment procedures the multi-mode mobile device receives service from the first wireless network and remains dormant on the second wireless network.