I have a digium d40 phone and i am trying to get dtmfmode working. I am using RFC 2833 and PBX in a Flash. Are there any known issues?


Nope. rfc2833 is the only supported mode for Digium’s phones. We don’t do inband or info.

i have rfc2833 set, and still having issues. what is the best way to go about troubleshooting?

The best thing you can do is contact Digium’s Support department. They can be reached by telephone at +1 256 428 6000, or you can open a case - digium.com/en/users/support-create-a-case/