SSP-571-D-ADA: Reliable stainless steel handsfree panel speakerphone that automatically dials a preprogrammed number from 1-11 digits when the button is pushed and red/green LED light provides visual indication of call progress. Telephone can be programmed to dial a PBX or access number, block or allow incoming calls, and provide call duration time-out from 1-9 minutes or no time-out. Telephone can not be left off-hook, as it detects when called party hangs up and resets itself. Equipped with red push button, Braille EMER PHONE Braille plate, tamper resistant security screws and weatherproof, puncture resistant speaker and microphone. Optional 371-011 mounting box, 371-012 frame available.