Method and apparatus for extending PBX features via the public network

US7200218B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Todd Lindley · Seattle, US
• Peggy M. Stumer · Boca Raton, US
• Faramarz Sahim · Boca Raton, US
• Joseph Budziak · Boca Raton, US
• Henry Wu · Fremont, US

Key dates

• Filing date: Nov 8, 2000
• Grant date: Apr 3, 2007
• Expiry date: Aug 9, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04Q1/45
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

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.