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Re: [Sip] [SIPForum-discussion] What's the difference between session and dialog in SIP?

Sip "Session Initiation Protocol". It talks about media session, i mean how to initiate, modify and terminate a session and Dialog provides a sort of context (like caller, callee, location, routing etc.) to modify this session. So dialog is more related to route the sip message to right node and body (SDP) handles media session if present. Dialogs may have media sessions Or may not. 
   
  Take an example of B2BUA. It is a type of statefull proxy having two dialog and one media session if doing media routing. 
  

Donald Lee <baolovebao at gmail.com> wrote:
  old good questions in sip, also add another "transaction".


  On Fri, Apr 25, 2008 at 8:18 AM, å&shy;?å®?å?? <szj087 at gmail.com> wrote:
  Hi, Vijay

Thanks very much for your timely answers.