Door Entry and Keyless Entry for up to 250 Apartments or Offices

Apartment/Office Door Entry converts any touch tone phone into a multi-number auto dialer that will store up to 250 telephone numbers in non-volatile E2 memory. Features: Stores 250 tenant touch tone phone numbers and keyless entry codes Non-volatile E2 memory (no batteries required) Remotely or locally programmable "Buzz" visitors in from apartment or office phones Programmable tenant’s relay activation code Programmable master keyless entry code and five maintenance codes Programmable call timer Multi-number dialer mode (for Kiosks, etc.) Ring-thru mode for calling the entry phone Normally open and normally closed (DPDT) relay contacts for controlling door strikes, magnetic locks, gates, etc. Auxiliary relay input to trigger a timed relay activation for postal locks, etc. Touch tone and pulse dialing toll restriction Programmable allow/restrict for 911 and 311 outside calls Log bus data output for logging entry events UL listed power adapter included Compatible with Viking’s vandal resistant entry phone K-1700-3, vandal resistant hot-line phone K-1900-8 or any touch tone phone $196.20

source https://www.vikingtelecomsolutions.com/viking-k-1900-3-apartment-office-door-entry-controller-with-250-number-dialer.html