Patent · US Active

Managing session initiation protocol subscription dialog state loss

US10104131B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Vladimir Gamaley · Rehovot, IL
Gili Nachum · Bet Shemesh, IL
Gil Perzy · Holon, IL

Key dates

Filing date	May 6, 2011
Grant date	Oct 16, 2018
Priority date	—
Expiry date	Jul 8, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04L65/1104
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Managing Session Initiation Protocol (SIP) subscription dialog state loss, including a SIP server locator configured to determine the identity of a SIP server that maintains a SIP subscription dialog corresponding to a SIP subscription dialog that is maintained by a SIP client, and a liveliness tester configured to periodically send to the SIP server a SIP RE-SUBSCRIBE message corresponding to the SIP subscription dialog.

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