[SIPForum-discussion] Difference between SIP Dialogue and SIPSession

vinoth.natarajan at wipro.com vinoth.natarajan at wipro.com
Fri Jun 19 04:21:15 UTC 2009

Yes, a Dialog ID is composed of Call ID, Remote Tag and Local tag. When
an INVITE is sent we have the Local tag and Call ID. 
The moment we get Remote Tag in 200 OK or 18x a DIALOG is established. A
Remote tag in 18x is called Early Dialog.
Guess, only INVITE, REFER and SUBSCRIBE are the Dialog creating methods


From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Devarjun T
Sent: Thursday, June 18, 2009 10:55 PM
To: raja sekar
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] Difference between SIP Dialogue and

Hi Raj,

I belive SIP Dialogue is One request and Responce. (Ex: Invite ---- >
100 Trying ------> and <-------180 ringing)

Where as session is whole transactions from invite to bye ( end of the


On Wed, Jun 17, 2009 at 9:05 PM, raja sekar
<rajasekar.dhanasekar at yahoo.co.in> wrote:

	Hi All,
	Good Evening!
	Can any one tell me the difference between SIP Dialogue and SIP
	Thanks in advance!
	Rajasekar Dhanasekaran.


	ICC World Twenty20 England '09 exclusively on YAHOO! CRICKET

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Thanks & Regards,
Devarjun T

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