Siemens Information & Communication Networks, Inc.

Siemens Corporation

Joseph Budziak

Peggy Marie Stumer

David Alan Vander Meiden

Nissim Ozery

David J Swartz

Charles Goodman

Neal J King

Michael Sassin

Christoph A Aktas

Faramarz F Sahim

Naser Sheikhzadegan

Todd Lindley

Henry Wu

Henry Shih Chuan Wu

A system and method allow PBX features to be extended through the public network. A teleworker calls into a PBX system and is assigned a fictitious port. The fictitious port is controlled by a telework server and appears to the PBX to be a local device. PBX features are invoked by particular sequences of DTMF tones or by voice prompt, or another data input system.

Method and apparatus for extending PBX features via the public network

Systems for dialing an emergency telephone number from a teleworking client according to the invention include apparatus that implement the steps of detecting at a teleworking client when an emergency number is dialed, disconnecting the teleworking client from the PBX/MLTS, connecting the teleworking client to the PSTN, and dialing an associated stored number. Though the invention is described with reference to a teleworking client, it may also be applied to any other dialup network connection.

Systems for dialing an emergency telephone number from a teleworking client remotely coupled to a PBX

Methods for dialing an emergency telephone number from a teleworking client according to the invention include detecting at the teleworking client when an emergency number is dialed, disconnecting the teleworking client from the PBX/MLTS, connecting the teleworking client to the PSTN, and dialing an associated stored number. The apparatus of the invention resides in software that is installed in off the shelf hardware. Though the invention is described with reference to a teleworking client, it may also be applied to any other dialup network connection.

Methods and apparatus for dialing an emergency telephone number from a teleworking client remotely coupled to a PBX

The present invention relates to a call forwarding system for forwarding telephone calls to a target telephone not having a direct dial number. The call forwarding system includes an intelligent forwarding unit for storing a forwarding direct dial number and the extension number for accessing the target telephone and for connecting the received forwarded call to the target telephone, a voice response unit including a DTMF decoder for receiving the forwarded telephone call and for decoding the extension number of the target telephone. A call connecting unit directly connects the in-coming telephone call to the target telephone.

Method for forwarding a call to a telephone behind a key telephone system

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Boca Raton, FL, United States of America

Joseph Budziak