Viking Electronics E-20B - door entry phone - light gray

The E-20B is a telephone line powered speaker phone designed to provide twoway handsfree communication. When the “Call” button is pressed, the E-20B will come off-hook and will remain off-hook until a CPC signal is detected, the programmed timeout has elapsed, a busy signal is detected, or the call goes silent, making the unit automatically disconnect.

The E-20B can be connected directly to a C.O. line or analog PABX/KSU station when programmed as a ringdown circuit, or used with a Viking Hot-Line Dialer.

Features
* Alternate action call button to place or cancel a call
Intelligent call progress detection for automatic hang-up on CPC, silence, busy signal, or time out
* Telephone line powered
* Adjustable microphone and speaker volume
* Programmable maximum call length
* Selectable auto-answer feature allows remote monitoring
* Two way handsfree communication
* Programmable VOX (mic/speaker) switching speed
* Light gray colored, impact resistant, U.V. stable, plastic chassis
* Surface mountable only