Subject: [Sipping] push to talk without establishing dialog

From: "khushboo jain" <[email-masked]>
Date: Fri, 31 Aug 2007 09:48:29 +0530

Hi,
 
I want to implement push to talk without using PTT server.
I was thinking of sending notify directly to the called party.
What will be the call flows like just after receiving 200 OK from called
party and giving ACK, should the caller start speaking?
Does this have advantages over sending INVITE?
 
Thanks  
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