Handoff system and method between different kinds of devices, SIP server and operational method of SIP server
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United States of America Patent
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Sep 13, 2011
Grant Date -
Aug 24, 2006
app pub date -
Feb 16, 2006
filing date -
Feb 18, 2005
priority date (Note) -
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Abstract
A handoff system and method between different kinds of devices, an SIP server and an application method of the SIP server applied thereto. The handoff system between different kinds of devices includes a plurality of devices; a SIP server which requests a routing path update when a handoff request signal is input from a source device among the plurality devices, and getting a target device to participate in a current session; and a gateway which updates a predetermined routing path when a request signal for the routing path update is input, and transmitting data to the source device and the target device via the updated routing path.
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