Patent · US Active

Alternate routing of voice calls in a heavily loaded SIP network

US9100467B2 · kind B2 · utility

2Cited by

6References

15Claims

0Family size

Assignee

Avaya Inc. · US

Inventors

Christopher D. Baldwin · Princeton, US
Milo{hacek over (s)} Pujić · Belleville, CA
Kurt Haserodt · Westminster, US
Benny Rodrig · Nes Ziona, IL
Dan Gluskin · Nes Ziona, IL
Harsh V. Mendiratta · East Brunswick Township, US
Amerjit Sandhu · Montvale, US
Mark T. Rolfs · Fort Collins, US
James Douglas Free · Thornton, US

Key dates

Filing date	Mar 13, 2012
Grant date	Aug 4, 2015
Priority date	—
Expiry date	Oct 4, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04M7/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Methods and systems for supporting the alternate routing of calls between endpoints, such as session initiation protocol (SIP) endpoints, are provided. An inner gateway alternate route (IGAR) application is invoked when the primary, Internet protocol, communication network is overloaded or otherwise unable to handle a call. The IGAR application assigns incoming and outgoing trunks, and serves as a contact point for session managers in routing the trunk call.

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