door phone display

15) door lock

14) Accepted to be connected with 4 door stations at most to several entrances each user)

13) More than 10 melodies for ring selection

12) Color video intercom by hands free monitor and unlock

11) Message broadcasting and image memory to be optional (option)

10) Control and monitor elevator by indoor phone (option)

9) Security indoor phone is accepted to connect with multi sensor(option)

8) Indoor phone and the guard unit can call and intercom with each other

7) Accepted to connect with second confirmed door station

6) Dingdong or Chord music to be optional

4) Intercom with any other apartments on the same network (network system only)
5) Video and audio indoor phones are compatible

3) Network or non-network system is optional

2) Up to 4 extension indoor phones for each indoor phone at most

1) Talk & Monitor with door station, unlock remotely

1) remote unlock door
2) all indoor phones are accepted to call, transfer calling and communicate each other
3) door lock