Patent · US Active

Resilient registration with a call manager

US8223926B2 · kind B2 · utility

2Cited by

12References

36Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Carleton M. Luck, Jr. · Apex, US
Louis Pratt · Holly Springs, US
Craig P. Miller · Raleigh, US
Roger V. Beathard · McKinney, US

Key dates

Filing date	Feb 11, 2005
Grant date	Jul 17, 2012
Priority date	—
Expiry date	Sep 11, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L65/1046
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Registering with a call manager includes connecting to a first call manager and a second call manager. The endpoints register with the first call manager and send keep-alive signals to the first call manager and the second call manager. If a failure is detected in the first call manager, the system initiates a failover process. The endpoints re-register with the first call manager when the first call manager regains operability.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.