Hi
     Sending your media capabilities in ACK is not Correct. You should
reject the Offer being made in 200OK(ie setting the ports in media streams
to Zero).
Subsequently you could send a BYE to terminate the dialog or could send a
Re-Invite
with changed SDP.

regds,
srikanth sundaragopalan





"Satish Bansal!" <[EMAIL PROTECTED]> on 02/11/2003 03:14:28 PM

To:   Jade Chen Yan <[EMAIL PROTECTED]>
cc:   "Sip-Implementors (E-mail)" <[EMAIL PROTECTED]> (bcc:
      Srikanth Sundaragopalan/HSSBLR)

Subject:  Re: [Sip-implementors] no SDP in INVITE message




Note: Some recipients have been dropped due to syntax errors.
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In ACK UAC will send its media capabilities.
Now both entities know each other's capabilities. If they cann't
communicate  using the media they support ,any one of them can send BYE
request.

rgds
Satish

Jade Chen Yan wrote:

> Hi, list,
>
>
> Suppose the following scenario ,
>
> UAC doesnot send the body in the INVITE message, and UAS sends the
> 200 OK
> to UAC. But UAC finds that it cannot support the midia capability  of
> UAS.
> UAC should send the ACK for the 200 OK.
>
> what will the  UAC do next?send BYE  request , re-invite request?or
> other
> request else?
>
>
> B.Regards,
> Jade
>
>
>
> Hi, list,Suppose the following scenario , UAC doesnot send the body in
> the INVITE message, and UAS sends the  200 OK to UAC. But UAC finds
> that it cannot support the midia capability  of UAS. UAC should send
> the ACK for the 200 OK.what will the  UAC do next?send BYE  request ,
> re-invite request?or other request else?  B.Regards,Jade
>
> _______________________________________________
> Sip-implementors mailing list
> [EMAIL PROTECTED]
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>
>

In ACK UAC will send its media capabilities.
Now both entities know each other's capabilities. If they cann't communicate  using the media they support ,any one of them can send BYE request.

rgds
Satish

Jade Chen Yan wrote:

Hi, list,


Suppose the following scenario ,

UAC doesnot send the body in the INVITE message, and UAS sends the  200 OK
to UAC. But UAC finds that it cannot support the midia capability  of UAS.
UAC should send the ACK for the 200 OK.

what will the  UAC do next?send BYE  request , re-invite request?or other
request else?


B.Regards,
Jade


Hi, list,Suppose the following scenario , UAC doesnot send the body in the INVITE message, and UAS sends the  200 OK to UAC. But UAC finds that it cannot support the midia capability  of UAS. UAC should send the ACK for the 200 OK.what will the  UAC do next?send BYE  request , re-invite request?or other request else?  B.Regards,Jade
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