Features:
- Contains the circuitry necessary to connect 8 digital telephones and 4 loop-start CO lines to the system
- Supports loop-start CO lines only which may be either DTMF signal or pulse signal
- Has circuitry necessary to support an external page
- Provides a place to mount a DTMF Receiver module
System Requirements/Compatibility:
- Works with Isoetec Digital System/Executone Integrated Digital System (IDS™) 84