Robust heavy gauge stainless steel flush mount or surface mount low power consumption handsfree speakerphone with push button for ring-down operation and red LED light to indicate phone is activated. Press to start/press to stop button for initiation and termination of phone calls. Telephone can be programmed to cancel calls after 1, 3, or 5 minutes or no timed call-out. Unit relies on external equipment to control calling. Phone is built with tamper resistant security screws and weatherproof, puncture resistant speaker and microphone. Optional (-SW) stainless steel surface mount box available. Equipped for VoIP operation with standard SIP server protocol, requires AC power.
Their imposing design & durability helps to deter vandalism, while making them easy to locate at your prisons, hospital, colleges, airports & more!