Self-contained system ideal for small to medium sized apartment buildings, gated communities, condominiums, office buildings, factories and industrial sites. Easy to create and change directory as needed with word processing program (templates are available from DoorKing). Available in surface and flush mount. Programmable directory codes (1-4 digits). 10 and 11-digit dialing capability. Two special inputs can be programmed for relay activation or to dial out a preprogrammed phone number. 5-digit entry codes for special needs. Built-in LED lighted directory and keypad. Built-in time clock. Hold open/ entry time zones “Flash” entry codes. Built-in postal lock provision. Programming display.