Multiplex communications – Wide area network – Packet switching
Patent
1992-10-08
1994-05-17
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 62, 370 681, 3701101, 379 67, 379 88, 379 89, 379201, H04M 322
Patent
active
053134591
ABSTRACT:
A digital private branch exchange system and methods of operating same are provided. A system according to the instant invention is capable of providing improved and integrated conference calling, voice mail, music on hold, and call forwarding features, without being subject to the typical problems associated with the prior art.
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Blum Russell W.
Newton Communications, Inc.
Olms Douglas W.
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