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Internet protocol (IP) multimedia subsystem (IMS) based session initiation protocol (SIP) call setup retry
Internet protocol (IP) multimedia subsystem (IMS) based session initiation protocol (SIP) call setup retry
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机译:基于Internet协议(IP)多媒体子系统(IMS)的会话发起协议(SIP)呼叫建立重试
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摘要
Systems, methods, and devices of the various embodiments disclosed herein may enable automatic retry of Internet Protocol (IP) Multimedia Subsystem (IMS) Based Session Initiation Protocol (SIP) Call Setup. Various embodiments may enable a server in an IMS based telecommunication network, such as a proxy-call session control function (P-CSCF) server, interrogating/serving-call session control function (I/S-CSCF) server, telephony application server (TAS), etc., to reattempt SIP call setup. In various embodiments, in response to receiving a SIP error response including a retry-after header, the server may wait a period of time before sending a new SIP invite message.
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