How the panel answers the phone, Ring-hang-ring method, Let the phone ring once, then hang up – GE 4 Series User Manual
Page 45: Enter # (your designated phone command prefix), Proceed with system commands, Twelve-ring, Codes with remote access capability, Touchtone phone system operation, Ring-hang-ring method twelve-ring
How the panel answers the phone, Ring-hang-ring method, Let the phone ring once, then hang up | Enter # (your designated phone command prefix), Proceed with system commands, Twelve-ring, Codes with remote access capability, Touchtone phone system operation, Ring-hang-ring method twelve-ring | GE 4 Series User Manual | Page 45 / 72