Viking Electronics - E-20B-EWP - Viking Electronics E-20B-EWP Intercom Sub Station - Surface Mount

The E-10A and E-20B are telephone line powered speaker phones designed to provide two way hands free communication. Both function identically, but are available in two different housings to better suit the application. When the "Call" button is pressed, the E-10A or 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.
Additional Information:
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
Programmable VOX (mic/speaker) switching speed
Surface mountable
Enhanced weather protection