- Provides loud electronic ring for night bell, warehouses, etc.
- Monitors up to 6 C.O. lines for ring or can be activated by a key system dry contact closure.
- Connect to unused trunk line input or paging port on electronic or 1A2 Key or "No KSU" phones for 2 watts of paging power (enough to drive 3 paging horns).
- Provides background music
- Weather-proof paging horn incl.
- Extra horn: SPC-8