Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-10-10
2006-10-10
Yao, Kwang Bin (Department: 2667)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S401000
Reexamination Certificate
active
07120139
ABSTRACT:
The present invention provides a system and method for a reliable, low-cost, secure Internet Protocol (IP) based network that provides broadband-based voice communications as well as video and data communications. The IP network is arranged to function with the infrastructure of the Public Switched Telephone Network (PSTN), to control telephone calls in SS7type networks and to provide the features, applications, and services of the typical SS7networks in a voice over IP network. The present invention supports large effective call volumes, allows accommodation of a wide range of broadband-based service platforms, provides flexibility to support current and future calling feature services, and provides high quality voice transmission.
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Kung Fen-Chung
Russell Jesse Eugene
Sankalia Anish
Wang Spencer
AT&T Corp.
Yao Kwang Bin
LandOfFree
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