[SIPForum-discussion] If TCP is used as transport then can we ignore sending of ACK?

[Haseeb Qureshi]

Hi, ACK prove the UAC that signalling has been established b/w both users. ready for accepting RTP Packets. its just like confirmaton about signalling establishment. you can ingonre because 200 Ok take the information of SDP but best practice we should not stop ack.  please let me know in case i am wrong.   Thanks
 Date: Thu, 28 Jul 2011 16:24:57 +0530
From: nitisha.gupta06 at gmail.com
To: discussion at sipforum.org
Subject: [SIPForum-discussion] If TCP is used as transport then can we	ignore sending of ACK?

Hi 

Can anyone explain :

What is the use of ACK message in INVITE transaction? If TCP is used as transport then can we ignore sending of ACK?

Thanks
Nitisha


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