- 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 - Weather resistant features: mylar speaker gaskets internally sealed push button switch UV stable exterior enamel coated PCB - 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 - Vandal resistant black powder painted aluminum face plate with heavy duty 316 stainless steel call button and mounting gasket - Flush mountable using included plastic rough-in box part # 259576 - Surface mount with optional VE-5x5
