We offer Telephone Equipment for the Office and Home
The doorphone interface ETU allows two DP-D-1A doorphones to be connected. One call is allowed, and two door lock release relays are provided. This card provides two PBR circuits. This ETU is installed in the DPH slot in the B408-B10 KSU.
The Push Button Receiver ETU detects and translates DTMF tones generated by single line telephones, modems, or facsimile machines. This ETU is installed in the PBR slot in the B408-B10 KSU.
This ETU provides two digital channels of built-in voice mail. This ETU is installed in the VMS/SLI slot.
