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.:
Date of Patent:
Dec. 03, 2013
Filed:
Jun. 30, 2006
Qingchun Shen, Guangdong Province, CN;
Lei Yuan, Guangdong Province, CN;
Caixia Miao, Guangdong Province, CN;
Wenge Zhang, Guangdong Province, CN;
Wanjun Shang, Guangdong, CN;
Xiaodong Chen, Guangdong Province, CN;
Xiangyu Yang, Guangdong Province, CN;
Qingchun Shen, Guangdong Province, CN;
Lei Yuan, Guangdong Province, CN;
Caixia Miao, Guangdong Province, CN;
Wenge Zhang, Guangdong Province, CN;
Wanjun Shang, Guangdong, CN;
Xiaodong Chen, Guangdong Province, CN;
Xiangyu Yang, Guangdong Province, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The invention discloses a method for establishing a session between a caller and a callee, applying to a next generation network, after said callee picking up, which includes: restarting a session negotiation with said callee via a first application server corresponding to the callee, upon obtaining a session description protocol of said callee, sending an update request message containing a session description protocol of said callee to a second application server corresponding to the caller; renegotiating, by the second application server, session with a caller according to said session description protocol of said callee; after the caller completing session update, returning a response message containing a session description protocol of said caller to said callee. The method can realize the multi-service nesting triggering or the forwarding triggering of several flows in one service, and can guarantee the proper connection between the caller and the callee.