Patent ID: 7236476

Claim:
A method for mobile transmission protocol based handover of a mobile device between non-intersecting networks, comprising: responsive to detecting a need for a mobile device to transfer out of a first network, sending to a communication endpoint a first request in a mobile transmission protocol to stop transmissions to a first address of said mobile device and a second request in said mobile transmission protocol to add an intermediary address of a mobility support service designated for receiving any communications already in transmission when said first request is sent; transitioning a communication link for said mobile device from said current address at said first network to a second address at a second network, wherein said first network and said second network are non-intersecting networks; and indicating to said mobility support service that said handover from said first network to said second network is complete, such that said mobility support service sends a third request in said mobile transmission protocol to said communication endpoint to continue communication with said mobile client at said second address.