Invention Grant
US08626849B2 Apparatus and method for resolving a race condition between two session initiation protocol (SIP) end points
有权
用于解决两个会话发起协议(SIP)终点之间的竞争条件的装置和方法
- Patent Title: Apparatus and method for resolving a race condition between two session initiation protocol (SIP) end points
- Patent Title (中): 用于解决两个会话发起协议(SIP)终点之间的竞争条件的装置和方法
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Application No.: US12844172Application Date: 2010-07-27
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Publication No.: US08626849B2Publication Date: 2014-01-07
- Inventor: Haiyang Yin , Lap Luu
- Applicant: Haiyang Yin , Lap Luu
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Gowling Lafleur Henderson LLP
- Main IPC: G06F15/16
- IPC: G06F15/16

Abstract:
An apparatus and method are described for resolving a glare condition between two SIP endpoints. The method allows a third party call control controller to resolve the glare condition when the ownership status of each dialog is the same, by initiating a back-off period of time at the apparatus based on the ownership status of the SIP dialog and re-sending a re-INVITE message to the end point after expiry of the back-off period of time.
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