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

US6587546B2 · kind B2 · utility

Assignee

• Siemens Information and Communication Networks, Inc. · US

Inventors

• Peggy M. Stumer · Boca Raton, US
• Nissim Ozery · Coral Springs, US
• David J. Swartz · Sunrise, US
• David A. Vander Meiden · Boca Raton, US
• Charles A. Goodman · Garden Grove, US
• Joseph Budziak · Boca Raton, US

Key dates

• Filing date: Mar 23, 2001
• Grant date: Jul 1, 2003
• Expiry date: Mar 23, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M2242/30
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

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.