Failsafe configuration for alternative network telephony

US6980638B1 · kind B1 · utility

Assignees

• Vulcan Research LLC · US
• Digeo, Inc. · US

Inventors

• Geoff Smith · Jackson, US
• Michael Lee · Cupertino, US
• Steve Young · Los Angeles, US
• Todd Krein · San Jose, US

Key dates

• Filing date: Mar 13, 2003
• Grant date: Dec 27, 2005
• Expiry date: Sep 12, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M7/0057
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A failsafe configuration for alternative network telephony is disclosed. An indication as to whether an alternative network telephony call processing system is available to process calls from an associated piece of telephone equipment is received automatically and transparently to a user of the telephone equipment. Calls placed from the telephone equipment at a time when the alternative network telephony call processing system is available to process calls are processed via alternative network telephony. Calls placed from the telephone equipment at a time when the alternative network telephony call processing system is not available to process calls are processed via the public switched telephone network (PSTN).