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...
RFC 3665 SIP Basic Call Flow Examples December 2003 F2 Unauthorized SIP Server -> Bob SIP/2.0 401 Unauthorized Via: SIP/2.0/TLS client.biloxi.example.com:5061;branch=z9hG4bKnashds7 ;received=192.0.2.201 From: Bob <sips:bob@biloxi.example.com>;tag=a73kszlfl To: Bob <sips:bob@biloxi.e...
1)RFC3665 -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 ...
Session Initiation Protocol (SIP) Basic Call Flow Examples 3 PCC - RFC3725 3rd party call control in sip SDP – RFC2327 RFC3264 RFC4566 新的SDP 标准是 RFC4566(2006.7) ,替换了 RFC2327 与 RFC3266 ; RFC3960 Early Media and Ringing Tone Generation in the Session Initiation 服务器定位 –RFC3...
SIP - Basic Call Flow SIP - Messaging SIP - Response Codes SIP - Headers SIP - Session Description Protocol SIP - The Offer/Answer Model SIP - Mobility SIP - Forking SIP - Proxies & Routing SIP to PSTN SIP - Codecs SIP - B2BUA SIP - Quick Guide SIP - Useful Resources SIP - Discuss...
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 ...
SIPCALLFLOW 1.Introduction SessionInitiationProtocol(SIP)isanapplicationlayersignallingprotocol forcreating,modifyingandterminatingsessionswithoneormore participantsoverIPnetwork.Thesesessionsincludetelephonecalls, multimediaconferences,instantmessagingetc.usingaudio,videoand ...
Figure 3-5 shows the SIP AG call flow. The calling party POTS1 picks up a phone. When the SIP AG detects that the calling party picks up a phone, it allocates DSP resources to the calling party and plays a dial tone. When detecting that the calling party dials the first digit of ...
RFC 3665 SIP Basic Call Flow Examples RFC 3702 Authentication, Authorization, and Accounting Requirements for SIP RFC 3824 Using E.164 numbers with SIP RFC 3968 IANA Registry for SIP Header Field RFC 3969 IANA Registry for SIP URI RFC 3976 Interworking SIP and IN Applications ...
Figure 4: SIP Call Flow for Device Registration SIP Call Flow for Keep Alive Notify In Figure 5 you will see a basic SIP Notify message flow. A Notify can be used for many things but in this case the notify is used for keep-alive and it is sent every 30 seconds. The keep-alive is...