I had issues with DTMF tones for 866 numbers about a week back. But 800 and 877 numbers were working fine. I think Brandon fixed the problem by changing the route for the 866 numbers. Now DTMF tones are working if I enter slowly. But if it goes from the phone memory it is hit or miss.

I had another thread regarding audio going for less than second every few minutes are so. Coming to think about it again, it happens only on 866 numbers for me. They changed my SIP server but I think I still see the same problem.

But I do not have one way audio problem.