The DM02 must be working otherwise the phones will not ring when the doorbel is pressed.
If the phones can ring the keypad should be able to chime. It should be a configuration setting
Try writing a default template into your system and add just one DP and KP and try the doorbell again
can I send you my cclx file - perhaps you'll be able to see which setting it is?
One odd thing I have noticed - when I write to Comfort via WIFI / CWM, or read from comfort using wifi / cwm, sometimes it writes/ reads incorrectly - so what comfirgurator tells me is in Comfort is wrong...especially for tuning parameters.....is this a known error?