I have FreePBX 184.108.40.206 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?