Voice mail not recognizing touch tones

I have FreePBX installed. I have a couple sip phones connected. (for the record they are TEO phones, but that does not help much). The phones are connecting to the server ok. I can call the other phone ok. When i dial 97 to check voicemail voicemail answers but it does not respond to any button that i push (2,3,0,,#). Does anybody have any suggestions as to what to look at to figure it out?


Sounds like a problem with DTMF…

Yeah - i kind of figured that. I checked device settings in advanced settings and SIP DTMF is set to rfc2833. I also tried the other options with no luck. I am not sure if there is somewhere else to check or how to go about troubleshooting it.