Data network and PSTN telephony system

Details Data network and PSTN telephony system Data network and PSTN telephony system

2006-06-13

2006-06-13

Qureshi, Afsar (Department: 2667)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S355000, C379S221110

Reexamination Certificate

active

07061901

ABSTRACT:
An adapter is disclosed which allows attachment of a standard telephone to a computer as a standard peripheral. The adapter converts analog signals of the telephone to digital signals of the computer and vice versa. The adapter can also be a stand-alone device allowing the telephone to be attached to a computer network. The adapter, in this case, contains the computing power to support the necessary data network protocols, and PSTN signalling protocols.In this way voice communication is enabled over a computer network without requiring the computers to be equipped with sound cards.

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