Patent · US Active

Sip presence server failover

US8406123B2 · kind B2 · utility

2Cited by

2References

11Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Ofira Tal-Aviv · Gdera, IL
Galina Rubinshtein · Holon, IL
Gili Revel · Rehovot, IL
Gil Perzy · Holon, IL
Yakov Kupherstein · Hadera, IL
Uri Segev · Or Yehuda, IL
Amir Perlman · Petah Tikva, IL
Avshalom Houri · Netivot, IL
James P. Galvin, JR. · Georgetown, US

Key dates

Filing date	Dec 11, 2006
Grant date	Mar 26, 2013
Priority date	—
Expiry date	Sep 27, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L67/142
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for SIP presence server failover, the method including setting an expiration time of a SIP application session on a first SIP server having a first SIP presence server to match the expiration time of a SIP request that is associated with the SIP application session, setting a SIP request attribute set representing a plurality of attributes of the SIP request, replicating the SIP application session together with the attribute set to a second SIP server having a second SIP presence server, migrating the SIP application session to the second SIP server for activation thereat, detecting an event indicating that the SIP application session has been migrated, and upon detection of the event, reestablishing at the second SIP presence server the SIP request associated with the SIP application session and using the attribute set.

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