DSC Impassa account number and Telephone Line programming
The DSC Impassa panel has both the account number and phone number programmed by Alarm.com. The account number reads the last four digits of the account number entered on Alarm.com, and the Telephone Line programming shows DCAA for line 1. These letters indicate that Alarm.com is programmed into that section.
Note: DFFF indicates that the field is null or does not have any settings programmed into it.