DTMF and Vonage/VOIP Companies

im having a hell of a time trying to pass dtmf through my pbx. It obviously works in network, but any outside call i make the tones dont pass, and any incoming call they dont pass. Ive tried rfc2833, info, and inband all with no result and matched each time with the config settings on my providers side. Any suggestions?

You and me both, a lot of inbound calls via IAX seem to miss out DTMF tones if dialed quickly or stopping a file being streamed via GET DATA… Although I’m having problems with asterisk locally as well so tend to think it may be that.