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:
Jan. 14, 2014
Filed:
Apr. 20, 2011
Xidong Wu, Livermore, CA (US);
Donggen Zhang, Fremont, CA (US);
Haibo Zhang, San Jose, CA (US);
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
A system that incorporates teachings of the present disclosure may include, for example, a mobile voice over internet protocol communication device, comprising a controller operable to register with a voice over internet protocol call processing system by way of a wireless fidelity access point operating in a cluster of wireless fidelity access points, and re-register with the voice over Internet Protocol call processing system by way of the wireless fidelity access point in response to receiving a re-registration request upon expiration of a timer having a period determined from attributes of the cluster by the mobile voice over Internet Protocol communication device. Additional embodiments are disclosed.