Device capable of accommodating existing voice terminals

Details Device capable of accommodating existing voice terminals Device capable of accommodating existing voice terminals

2005-01-04

2005-01-04

Pezzlo, John (Department: 2662)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S401000, C370S442000

Reexamination Certificate

active

06839341

ABSTRACT:
A line unit is connected to an integrated voice/data switching unit by a connection line and includes a plurality of extension interfaces customary with a PBX (Private Branch Exchange). The extension interfaces each accommodate telephones or similar voice terminals and connect them to the switching unit. Each extension interface is connected to a particular packet processing unit by a dual port memory and a 2M highway interface. The line unit switches frame signals subjected to TDM (Time Division Multiplexing) and packets received from a network on a connection line and interchanges voice packets when a communication path is set up.

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