Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1996-09-16
1999-04-06
Ton, Dang
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370395, H04L 1256
Patent
active
058927646
ABSTRACT:
A distributed private branch telephone exchange (PBX) including a local area network carrying telephony traffic, an interface to the PSTN and a station interface connecting to a telephone device transmitting telephony over the local area network. The distributed PBX may contain a number of multi-port modules connected over a local area data network. The multi-port modules convert between synchronous and asynchronous signals and connect between a telephony environment, such as a telephone device, a local area network, and a personal computing device. The distributed PBX also includes PBX software and a graphical user interface (GUI) which facilitate the management of various PBX functions.
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Kergozou M. A.
Niesman David F.
Riemann Ernst B.
Vyskocil Randall
Weir Alan T.
Sphere Communications Inc.
Ton Dang
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