[OpenSIPS-Users] question on call handling.

[Bogdan-Andrei Iancu]

Hi Ben,

The paragraph you refer to is this one :

       o  After having sent or received an answer to the first offer, the
          UAC MAY generate subsequent offers in requests based on rules
          specified for that method, but only if it has received answers
          to any previous offers, and has not sent any offers to which it
          hasn't gotten an answer.


So the 200 must contain the same SDP as the 180 because there is no SDP 
replied back between the 180 and 200 ?

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS eBootcamp 2021
   https://opensips.org/training/OpenSIPS_eBootcamp_2021/

On 10/1/21 5:41 PM, Ben Newlin wrote:
>
> No, this is not allowed by the specification, though some devices do 
> handle it.
>
> https://datatracker.ietf.org/doc/html/rfc3261#section-13.2.1 
> <https://datatracker.ietf.org/doc/html/rfc3261#section-13.2.1>
>
> Ben Newlin
>
> *From: *Users <users-bounces at lists.opensips.org> on behalf of johan 
> <johan at democon.be>
> *Date: *Friday, October 1, 2021 at 10:35 AM
> *To: *OpenSIPS users mailling list <users at lists.opensips.org>
> *Subject: *[OpenSIPS-Users] question on call handling.
>
> Dears,
>
>
> this is more a general sip question.  when establishing a dialog is it
> then allowed to change the sdp that you have sent in 183 to somehting
> else in 200 Ok ?
>
>
> wkr,
>
>
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>
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