26 Nov
2020
26 Nov
'20
3:59 p.m.
Hello, For incoming calls, I want to receive DTMF inband. FS receives INVITE and at certain stage sends 200 OK with a SDP section, which always contains : a=rtpmap:101 telephone-event/8000 (what means 'DTMF in RTP metadata'). Indeed the DTMFs come via RTP. I tried various FS configuration options to remove that line, without success. How to do it? How to tell a gateway to send DTMFs inband ? In advance thank you very, very much, Adrian.