Push to talk button
Phone line powered
Vandal resistant, stainless steel faceplate with heavy-duty metal call buttons
Non-volatile E2 memory (no batteries required)
Touch Tone or pulse dialing
Programmable to dial up to 5 numbers on busy or ring no answer
Red off-hook LED indicator
Hangs up on CPC, silence, busy signal, return to dial tone, time out or a Touch Tone command
Programmable to auto-answer on incoming calls
Remotely programmable
Extended temperature range (-15°F to 130°F)
Flush mountable using included plastic rough-in box