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.:

US 8838771 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 16, 2014

Filed:

May. 24, 2006
Applicants:

Parag Narayanrao Pote, Bangalore, IN;

Sudhakar Valluru, Sunnyvale, CA (US);

Ganesh Pai, Lexington, MA (US);

Inventors:

Parag Narayanrao Pote, Bangalore, IN;

Sudhakar Valluru, Sunnyvale, CA (US);

Ganesh Pai, Lexington, MA (US);

Assignee:

Alcatel Lucent, Boulogne-Billancourt, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01); H04L 12/66 (2006.01); H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

Providing fail_over call processing services by sniffing signaling traffic, without the overhead of configuring/provisioning terminals (phones), call servers etc. According to an aspect of the present invention, the integrated device operates as a backup call server when external call servers are unavailable. In one embodiment, the integrated device checks whether a first call server, to which a call setup request is destined to, is available, and forwards the request to another call server if the first call server is unavailable. According to another aspect, the integrated device detects the access information of each terminal registering with a call server, and uses the detected information to provide responses to call setup requests when the call servers are unavailable. As a result, the IP phones in a local network can continue initiating calls even when call servers located at remote sites, become unavailable.


Find Patent Forward Citations

Pote, Parag. (2014). Enabling voip calls to be initiated when a call server is unavailable (U.S. Patent No. 8838771). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8838771

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