Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2003-10-21
2008-10-21
Tieu, Binh K (Department: 2614)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S401000, C379S037000, C379S045000
Reexamination Certificate
active
07440442
ABSTRACT:
Providing enhanced emergency services (E-911) to an IP Telephony-based PBX or similar system, by utilizing aspects of the intelligence of end-user SIP client devices to address challenges and difficulties associated with E-911-like services in LAN-based telephony environments.
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Grabelsky David
Homeier Michael
Joseph Boby
Tripathi Anoop
3Com Corporation
McDonnell Boehnen & Hulbert & Berghoff LLP
Tieu Binh K
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