[SIPForum-discussion] Difference between DIALOG, SESSION and TRANSACTION

Andy Chen andy.chen.zhen at gmail.com
Fri Aug 17 21:54:33 UTC 2007

Hi all,

Transaction: between UAC and Proxy, Proxy and UAS
Dialog: between UAC and UAS
           UAC: Send INVITE and Receive 18X early dialog
           UAC Receive 200 confirmed dialog
Session: after UAS Receive ACK(200) between UAC and UAS, the session
is established.


2007/8/17, Lokesh Agrawal <lokesh.agrawal at gmail.com>:
> Hi All,
> Can Any one tell me difference between DIALOG, SESSION and TRANSACTION.
> Please tell in detail with an example.
> Thanks and Regards
> Lokesh Agrawal
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