The Dual-Frequency Night Ringer is designed to respond to 90V ring signals or external contact closures. It features a dual-frequency electronic ringer tone that seamlessly connects to any paging system.
With the ability to automatically mute background music during ringing, this device ensures you never miss an important alert. It also includes a ringer volume control for customization and has a compact size for easy installation while drawing low current.
Avaya BG-NR100 Dual-frequency Night Ringer With Mute Control