[SIPForum-discussion] why not ACK ???????????????????

Gaurav2 Jain gaurav2.jain at aricent.com
Fri Nov 23 10:59:53 UTC 2007

As per my knowledge... ACK is mandatory for INVITE.. but it's optional for 
other messages.. so it's not required.... i'll try to give an example for 

"darshan b n" <bn.darshan at gmail.com> 
Sent by: discussion-bounces at sipforum.org
11/23/2007 03:43 PM

discussion at sipforum.org

[SIPForum-discussion] why not ACK ???????????????????

Hi all,
"Why ACK is not send for messages otherthan INVITE transaction ??????????
please reply

Darshan B N

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