Now an even better 2-wire modular intercom system with a capacity of up to 256 apartments. For systems up to 64 apartments, it is now possible to use buttons (DVC 821 / M4), all with even simpler configuration and automatic detection of BDUs and monitors (it is no longer necessary to assemble a namelist on the DT821).

New features in the 3in1 touch screen module
- Increased capacity for installation up to max. 256 apartments
- Easily search and add devices directly from the screen
- Set the name directly on the screen
- Setting up and programming the entire system directly on the screen (no computer required, SD card, special monitors, namelist)

More ways to view tenants:

1. Call by selecting a name from the phonebook or entering a space code

2. Opening the door by entering the code or card / keychain (125kHz and 13.56MHz) Installation of DVC intercom system