Method and system for automatic seamless mobility

Details Method and system for automatic seamless mobility Method and system for automatic seamless mobility

H - Electricity

04

W

H04W 36/14 (2009.01) H04W 92/10 (2009.01)

Patent

CA 2653055

A telecommunication system (10a) and methods (100, 110, 120) for automatically and seamlessly switching voice calls on a wireless mobile device (70) between different wireless network services during the same conversation without user interaction and without being noticeable to the parties on the call. For example, a voice call at a mobile device (70) using the services of a wireless wide area network (e.g., GSM/GPRS cellular network) may be switched over to a wireless local area network (e.g., 802.11 wireless network) (100), and vice versa (110), while the call is in progress and without any input from the parties on the call. The system (l0a) and another method (130, 140) also provide a mechanism for maintaining a voice over Internet Protocol (VoIP) call while the mobile device moves between wireless access points (AP) and has automatic reconnection (140f, 140g, 140h, 140j, 140k) in case there is a dropped call.

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