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 9509576 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 29, 2016

Filed:

Jul. 09, 2012
Applicants:

Claudio Forlivesi, Sint-Lambrechts-Woluwe, BE;

Nico Janssens, Putte, BE;

Alessandro Duminuco, Milan, IT;

Inventors:

Claudio Forlivesi, Sint-Lambrechts-Woluwe, BE;

Nico Janssens, Putte, BE;

Alessandro Duminuco, Milan, IT;

Assignee:

Alcatel Lucent, Boulogne-Billancourt, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01); H04L 12/26 (2006.01); H04L 29/06 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 43/04 (2013.01); H04L 43/0876 (2013.01); H04L 65/1006 (2013.01); H04L 65/1083 (2013.01); H04L 67/1029 (2013.01); H04L 67/1031 (2013.01); H04L 67/14 (2013.01); H04L 67/142 (2013.01); H04L 67/148 (2013.01);
Abstract

A method for transferring state information pertaining to a plurality of SIP conversations from a first SIP server to a second SIP server, said first SIP server and said second SIP server being operatively connected to one or more SIP gateways, the method comprising at a controlling node: monitoring said first SIP server until ongoing transactions are terminated; after termination of said ongoing transactions, obtaining dialog state information pertaining to conversations managed by said first SIP server from said first SIP server; and storing said obtained dialog state information at said second SIP server.


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