Hi,
I am having trouble with the DTMF input on XLite and Bria softphones. Whenever a button is pressed asterisk shows a warning “unknown rtp codec 126 received…” and does not recognize DTMF. I have tried setting it to RFC2833 and Inband in the softphones but no difference. Softphones work on some computers and on others they don’t.
All your help is highly appreciated.
Thanks,
Babar Shabbir