Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2011-08-09
2011-08-09
Shah, Chirag G (Department: 2477)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S467000
Reexamination Certificate
active
07995559
ABSTRACT:
In one embodiment of the present invention, a method is provided for redirecting a session established between two endpoints. In such an embodiment, the method comprises receiving a SIP request to redirect the session to a third endpoint; dissociating the two endpoints; suspending a media session between the endpoints; connecting a signaling session between one endpoint and a third endpoint; and connecting the media session. In an alternative embodiment, a method is provided for referring a first endpoint to a second endpoint outside of an established dialog. In such an embodiment, the method comprises receiving a SIP REFER request specifying a uniform resource indicator associated with the second endpoint as a target; identifying a protocol associated with each endpoint; initiating a session with the first endpoint using an appropriate protocol; receiving media control information from the first endpoint; and connecting the session to the second endpoint using an appropriate protocol.
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Bao Ho
Chen Joanna J.
Hua Stephen S.
Li Shipeng
Ni Ping
Baker & Botts L.L.P.
Cisco Technology Inc.
Shah Chirag G
Van Jenkey
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