However, if you can capture SIP call flow diagrams, it can become a relatively straightforward debug task since the call flows show all of the control messages being passed between the PBX and the phone. In this
sip call flow Incoming call Step one, 收到一个呼叫请求，并携带caller的媒体能力 Step two, 发送一个确认回应 Step three, 发送一个正在振铃回应 Step four，发送一个应答回应，携带callee确认的媒体信息 Step five, 收到一个确认回应 Step six，收到一个会话终止请求 Step seven，发送一个确认回应 Outgoing ...
· 使用display voice sip call命令可以查看到SIP当前的呼叫信息。 1.16.3 SIP UA通过DNS服务器查询目的地址后呼叫配置举例 1. 组网需求 Router A和Router B作为SIP UA,通过DNS服务器查询目的地址后进行SIP呼叫。 2. 组网图 图1-6 SIP UA通过DNS服务器查询目的地址后呼叫组网图 3. 配置步骤 (1) 配置Router ...
1>Call Flow Between Two SIP Gateways 在这个场景里,GW-A扮演UAC的角色,GW-B扮演UAS的角色 1) 左边的模拟电话摘机,拨叫右边的模拟电话,左边的PBX给GW-A发出call setup message。GW-A向GW-B发起INVITE,其中会包含用于协商capability的SDP,同时GW-A还会向左边的PBX发出call proceeding,告诉它会话正在建立当中。
SIPCALLFLOW 1.Introduction SessionInitiationProtocol(SIP)isanapplicationlayersignallingprotocol forcreating,modifyingandterminatingsessionswithoneormore participantsoverIPnetwork.Thesesessionsincludetelephonecalls, multimediaconferences,instantmessagingetc.usingaudio,videoand ...
the call could not be set up. The participants in this call are not charged for the remote treatment portion of the call. This one way voice path is generally set up as part of the processing of the SS#7 ISUP ACM message. The following call flow illustrates call setup using SS7 ISUP ...
BYE reaches directly from Alice to Bob bypassing the proxy server. Finally, Bob sends a 200 OK response to confirm the BYE and the session is terminated. In the above basic call flow, three transactions are (marked as 1, 2, 3) available.The...
the call could not be set up. The participants in this call are not charged for the remote treatment portion of the call. This one way voice path is generally set up as part of the processing of the SS#7 ISUP ACM message. The following call flow illustrates call setup using SS7 ISUP ...
-Session Initiation Protocol (SIP) Basic Call Flow Examples 2)3PCC - RFC3725 -3rd party call control in sip 3)SDP – RFC2327 RFC3264 RFC4566 - 新的SDP标准是RFC4566(2006.7),替换了RFC2327与RFC3266; 4)RFC3960 - Early Media and Ringing Tone Generation in the Session Initiation ...
Media mode: Flow-through Negotiated DTMF-relay: Inband-voice Local IP address: 200.1.1.36: 16316 Remote IP address: 200.1.1.30: 16642 Number of SIP UAC calls: 1 表1-3 display voice sip call命令显示信息描述表 字段 描述 Call number 呼叫的编号 Call ID 呼叫ID Call status 呼叫状...