AAS 16-1050 PhoneAire Available in 50, 500, 1000 code capacity, Programmable Personal Master Code Programmable Latch Code, Programmable "One shot" Code, Programmable Sleep Code Adjustable volume - microphone, speaker & phone tone, Event Input Pinhole camera (optional), Night Light "60 second on" capability, Unique double ring cadence Call waiting, Call button disconnect, By-pass switch included