- Calling and paging
- Variable system composition up to 6 units of TP-6RC
- ID setting enabled with dip switch
- Effective calling to all units by paging function
- Door lock release (optional)
- Optional: Possible to use door phone by enabling door bell DR-DW2N connection. The DR-WD2N is a door station unit of TP-6RC interphone system and electric door strike can be used with this doorphone system.
- Optional: External Paging Speaker – a built-in amplifier in each interphone station permits the addition of an external speaker to any station located in an area where ambient sound level may interfere with the ability to hear paging announcement and the call tone.