Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-02-21
2006-02-21
Sam, Phirin (Department: 2661)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S493000, C379S114280
Reexamination Certificate
active
07002952
ABSTRACT:
A communication system is disclosed that provides usage-based billing for voice communications transmitted over a packet system. The communication system is comprised of a packet billing system that sniffs signaling transmitted between a signaling processor and a communication device, such as a switch or a router. If the packet billing system detects a call setup message in the signaling, then the packet billing system generates a start record. If the packet billing system detects a call complete message in the signaling, then the packet billing system generates an end record. The packet billing system transfers the start record and the end record to a conventional public switched telephone network (PSTN) billing system. The PSTN billing system generates a bill for the call based on the start record and the end record. The communication system advantageously provides usage-based billing for packet-based calls using the conventional PSTN billing system.
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Sam Phirin
Sprint Communications Company L.P.
LandOfFree
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