Ok, I have searched high and low, and even found some people with my problem, but no answers. I have no outgoing or incoming DTMF. I did have incoming tones, but since I upgraded to the latest cvs, that is gone also. My set-up looks like this: Sipuras --> Asterisk --> Cisco AS5350 --> PSTN Cisco has looked and cannot find a problem, Digium has looked, and I have spent many, many hours searching. Anybody out there have experience with this? I am using rfc2833 in the Sipuras, in asterisk, and in the Cisco. I have verified this through many debugs. Someone has to know the answer to this one!