[OpenSIPS-Users] Siprec subscribe-answer rtpengine flags

[Răzvan Crainea]

Hey, Walter!

Thanks for your suggestion! A PR for this would be more than welcome :).

Best regards,

Răzvan Crainea
OpenSIPS Core Developer / SIPhub CTO
http://www.opensips-solutions.com / https://www.siphub.com

On 6/11/25 11:06 AM, Walter Schober wrote:
> Hi Razvan!
> 
> 
> Thanks for this information! Yes, it did the job indeed!
> 
> I would suggest to adopt the Doc https://opensips.org/docs/modules/3.6.x/siprec.html#pv_siprec accordingly:
> 
> "
> media - the IP that RTPProxy will be streaming media from. If absent 127.0.0.1 will be used. NOTE:media_ip has been dropped.
> "
> 
> to
> 
> "media - RTPProxy: the IP that RTPProxy will be streaming media from. If absent 127.0.0.1 will be used.    <<<--- I don’t know RTPProxy behaviour here
>           RTPEngine: flags to RTPEngine used for SRS Media Session. If absent the configured interface IP is used with no separate flags.
>                      E.g. "allow-transcoding" for use of RTPEngine if SRS is not answering with exactly same codec list as offered.
>           NOTE:media_ip has been dropped.
> "
> 
> 
> Br
> Walter
> 
> -----Ursprüngliche Nachricht-----
> Von: Users <users-bounces at lists.opensips.org> Im Auftrag von Răzvan Crainea
> Gesendet: Dienstag, 10. Juni 2025 09:58
> An: users at lists.opensips.org
> Betreff: Re: [OpenSIPS-Users] Siprec subscribe-answer rtpengine flags
> 
> Hi, Walter!
> 
> You can pass the allow-transcoding flags in the $siprec(media) variable,
> before engaging recording:
> 
> $siprec(media) = "allow-transcoding";
> 
> Best regards,
> 
> Răzvan Crainea
> OpenSIPS Core Developer / SIPhub CTO
> http://www.opensips-solutions.com / https://www.siphub.com
> 
> On 6/3/25 11:50 AM, Walter Schober wrote:
>> Hi!
>>
>> I’ve successfully managed to record a call via SIPREC module using OpenSIPS 3.6.0 and RTPEngine 13.2.
>>
>> But I needed to do a trick to have the subscribe-answer to allow transcoding: I used a template „default“ in the rtpengine.conf to set
>>
>> [templates]
>> default = allow-transcoding asymmetric
>>
>> This is global unfortunately. I searched all the module documentations siprec, dialog, rtp_relay (I understood: rtpengine cannot be done directly in 3.6 with siprec). I looked even into source code.
>> I haven’t found any hint how to add RTPEngine flag „allow-transcoding“ to the „subscribe answer“ command in opensips.
>>
>> Did I miss something or is this not possible?
>>
>> Thanks for help me understanding this!
>> br
>> Walter
>>
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> 
> 
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