[SIPForum-discussion] Sip Update Mesagge

[vijay kant gupta]

hi everyone as per my knowlege , Update method is used to update the
parameter of a session but no impact on dialogue. if u want to change the
parameter so SDP is an mandatory parameter of a Update method.

So by this way we cant send update method without SDp

On Mon, Sep 8, 2008 at 1:47 PM, Osman Bilgehan KARLI <obkarli at aselsan.com.tr
> wrote:

>
> Hi all,
>
> I have one basic question,
>
> Can we able to send UPDATE message without including SDP/Media information.
>
> Is it (Conversation like that) possible ?,
>
> 1-Inivite(sdp)------- User agent 1
> 2-18x(sdp)----------User agent 2
> 3- Update(without sdp)--- User agent 1
> 4- 200 OK(response to Update without sdp)---- User agent 2
> 5- 200 OK(response to Invite with sdp)---- User agent 2
>
>
> At now we are trying that and user agent 2 response with an error. Is it
> general situation or an extreme case.
>
> Thanks for all
>
> Regards
>
>
>
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