Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2007-10-10
2011-11-22
Chou, Albert T (Department: 2471)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C709S228000
Reexamination Certificate
active
08064436
ABSTRACT:
Session Initiation Protocol (SIP) signaling messages, such as a SIP INVITE message and/or a SIP Redirect message, which are adapted for communicating signaling information between a plurality of network elements located on a multi-media services provider system to set-up a call between at least a first communication device and at least a second communication device of a plurality of communication devices. The SIP INVITE message includes a plurality of address and/or routing information located in a request-URI portion. The SIP Redirect message includes a plurality of address and/or routing information located in a contact header portion.
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Ganesan Sekar
Parlamas Stephanie
Samarasinghe Harish
AT & T Intellectual Property II, L.P.
Chou Albert T
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