yes that would be compatible, but again I STRESS you do not need a dataset for the CAS interface ONLY for the PBX interface. Throw out the disk with the prophet "software" on it. It actually is a proprietary system used to programmed but you are better off just using Hyperterm or Procom.

Normally a service module for a Prophet H3 is a little white box that has a hardwired cable that goes to the system port on the prophet, a DB25 port labeled modem and a system port that goes to the PMS and/or a touch pad. I sincerely suggest that if you do not have a modem hooked up and you do not have a touchpad that you take the darn service module out of the loop.

Do a reset on the prophet by pushing the recessed reset button on the back near where the cables connect and tell us what option the system is in when the reset message prints out.

Also you didn't tell us that the calls weren't going to the data center I just thought they were seeing the calls but the Prophet wasn't seeing their response.