Voice over IP architecture

Details Voice over IP architecture Voice over IP architecture

2006-10-16

2011-10-18

Phillips, Hassan (Department: 2467)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S356000, C370S389000, C370S395200, C370S401000, C370S412000, C370S493000, C370S494000, C379S219000, C379S220010, C379S221120

Reexamination Certificate

active

08040877

ABSTRACT:
A Voice over Internet Protocol (VoIP) network is described in which session state is maintained in access switches, but not signaling gateways which maintain transaction state only during pendency of a related transaction. The signaling gateway further provides transparent inter-operation between the VoIP network and non-IP networks, such as the PSTN, by means of a translator which directly translates messages between the networks.

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