[OpenSIPS-Users] telephone-event rtpmap value

[Răzvan Crainea]

This sounds a bit broken: if the client advertises the payload type of 
96, thats what it will have in the generated RTP packets, so I don't 
really see a valid reason for doing that. Unless the client is really 
broken and advertises a ptype of 96, but sends the packets using 101.

Anyhow, in order to do that, you can use the subst_body() function in 
the textops module:
https://opensips.org/docs/modules/2.4.x/textops.html#func_subst_body

Best regards,

Răzvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com

On 3/27/20 4:43 PM, solarmon wrote:
> Hi,
> 
> I have an opensips 2.4 cluster using rtpproxy nodes.
> 
> I'm troubleshooting some DTMF issue and have a requirement to change the 
> inbound INVITE SDP payload from:
> 
> a=rtpmap:96 telephone-event/8000
> 
> to
> 
> a=rtpmap:101 telephone-event/8000
> 
> in the outbound INVITE SDP.
> 
> How could this mapping/conversion be achieved with my opensips/rtpproxy 
> setup?
> 
> Thank you!
> 
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