A calling group (772)for delayed call handling would need to be setup as an auto-attd. Apparently the Audix is set for a 3 digit range, you indicate the 200 range. The dial plan for Audix should have been setup for 200 thru 899 to allow a full range, but may not have been. That may be changed in Audix Administration
If you are wanting a DID number to be answered Day or Night by an Auto-Attd, then Audix must be correctly administered for that DID number
Remote access is via an installed AYC-54 remote modem board and is accessed by a program such as ProComm or Avaya Site Administration using 4410 terminal emulation.
The Documents link for Audix that I provided should supply all the information needed, but if you are not familiar with Audix, you will have a bit of reading to do.