The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Feb. 11, 2005
Carleton M. Luck, Jr., Apex, NC (US);
Louis L. Pratt, Holly Springs, NC (US);
Craig P. Miller, Raleigh, NC (US);
Roger V. Beathard, McKinney, TX (US);
Carleton M. Luck, Jr., Apex, NC (US);
Louis L. Pratt, Holly Springs, NC (US);
Craig P. Miller, Raleigh, NC (US);
Roger V. Beathard, McKinney, TX (US);
Cisco Technology, Inc., San Jose, CA (US);
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.