Bump Sorry all to ask again, I'm getting a bit confused now.
My trunk provider says that I need to reply 488 in order to change the rtpmap:100 to 101. I have seen posts about using transcode-telephone-event and always-transcode (this one is not listed in the OpenSIPS doc for rtpengine) and I can see there is an option to add a body part. So I'm wondering if I should: A. Use transcoding, although I don't understand how to get it to use rtpmap: 101 B. Intercept the INVITE, strip out the unwanted rtpmap line and reply 488 after using rtpengine module to add a body part to specify rtpmap: 101 C. Something else? Am I on the right track at all here? Mark. On Tue, 17 Nov 2020 at 11:57, Mark Farmer <farm...@gmail.com> wrote: > Hi everyone > > I am getting some INVITE's that are requesting a=rtpmap:100 > telephone-event/8000 and some other codecs too which is breaking DTMF. > > What I really need to do is to force a=rtpmap:101 telephone-event/8000 in > the replies. > Can anyone tell me how to do this please? I've been looking at the docs > but I'm struggling with this one. > > I am using RTPEngine and OpenSIPS 3.0 > > Many thanks! > Mark. > > -- Mark Farmer farm...@gmail.com
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