- Bogen telephone interface input module
- Loop start or ground start trunk interfacing (requires external power supply)
- Dry loop interface to paging ports
- Audio-activated paging in dry loop
- Gain/trim control
- Limiter
- Noise gate with threshold and duration
- Mute send and receive
- 4 Priority levels
- Bus assignable
- Transformer-isolated
- Screw terminal connections

BGTEL1S