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

[darshan b n]

Hi,

I want to know it is possible to Send an SDP parameter in PRACK  similar to
What an ACK message  does in a SIP seesion?

Regards
Darshan B N

On 23/11/2007, Anthony Orlando <avorlando at yahoo.com> wrote:
>
> There are other forms of ACK's called a PRACK that act
> in the same manor.  The idea behind the ACK is that
> you want reliable delivery of the SDP.  So you ACK the
> 200 OK.  SDP is usually contained in the 200 OK.  In
> some cases SDP is delivered in a 18x. If you receive a
> 18x with SDP you should require a PRACK to the 18x.
> Hope this helps.
>
>
> Anthony
> --- darshan b n <bn.darshan at gmail.com> wrote:
>
> > Hi all,
> >
> >
> > > "Why ACK is not send for messages otherthan INVITE
> > transaction ??????????
> > >
> > please reply
> >
> > --
> > Darshan B N
> >
> > Thanks & Regards
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>
>
>
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-- 
Darshan B N

Thanks & Regards
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