[OpenSIPS-Users] question on call handling.

[johan]

Scenario is this


A  ---> OPENSIPS and rtpengine -----> B

    INV     ->                                 >   INV

    183 sdp  <                              <183 sdp

                                                  <  480

                                                 
-------------------------------------------------> Voicemail

                                                     > INV     

                                                      < 200 with diff sdp

    200 with diff sdp <

would giving rtpengine the port latching option fix this ?


wkr,

On 1/10/2021 16:41, 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,
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20211001/73e9915a/attachment.html>