![Algo 1127PB LED Visual Alerter Blue Algo 1127PB LED Visual Alerter Blue](https://voip.com.vn/36783-large_default/algo-1127pb-led-visual-alerter-blue.jpg)
Algo 1127PB LED Visual Alerter Blue
The Algo 1127 Visual Alerter is an LED light that provides visual indication of telephone ringing and notification events where a relay or audio detection is available. Note: The 1127 does NOT connect directly to a telephone.