The Intercom function block is used to integrate and program the Loxone Intercom.

This allows intercom and video via the user interface or App.

Table of Contents


Abbreviation Summary Description Value Range
Bell Activate bell Activates output (Bell) and assigned audio players.
Activates output (Mute) if input (Mute) is 1.
Mute Mute bell Deactivates output (Bell) and assigned audio players when 1. 0/1
TTS Text to speech Text input for playing a voice message over the Intercom speakers -
Off Off Pulse: Outputs are reset / switched off.
On: Block is locked.
Dominating input.


Abbreviation Summary Description Value Range
Bell Bell Output for controlling a doorbell. 0/1
Mute Bell muted Output for controlling an alternative when bell is muted. 0/1
O1 Custom output 1 Output is named in the settings and triggered from the user interface. 0/1
O2 Custom output 2 Output is named in the settings and triggered from the user interface. 0/1
O3 Custom output 3 Output is named in the settings and triggered from the user interface. 0/1
AC API Connector Intelligent API based connector. Learn more about it here.
To assign this block to an Intercom, connect the API Connector of the device to this output.


Abbreviation Summary Description Unit Value Range Default Value
maxB Maximum bell duration Output (Bell) and (Mute) will remain active for set duration.
The doorbell signal is only played once by the assigned audio players, even if visitors ring several times.
The intercom popup in the user interface is shown for set duration. Answering or rejecting the call deactivates the outputs (Bell) and (Mute) immediately.
s 0...∞ 60
Bbr Button brightness Sets the brightness of the intercom button illumination. This parameter is only visible in certain configurations. % 0...100 20
Bbl Activate bell button light Activates the intercom button illumination when 1. This parameter is only visible in certain configurations. - 0/1 0
Qon ON duration of custom outputs (O1-3) s 0...∞ 3


Summary Description Default Value
O1: User Interface Action 1 Name for function 1
e.g. door release
O2: User Interface Action 2 Name for function 2
e.g. outside light
O3: User Interface Action 3 Name for function 3
e.g. Inside Light
Reply With Message The specified text is played back as a voice message on the Intercom when selecting it in the user interface. -
Audio Player Bell Output Pair the Intercom with your Audio Players to play a ringtone when the doorbell is pressed. -

Programming example

First, a Loxone Intercom is paired.

The block is automatically created when the Loxone Intercom is dragged from the periphery tree to the programming page:

The doorbell button input of the Intercom is connected to the block's (Bell) input.

A separate doorbell can be connected to output (Bell). Outputs (O1-3) are used to control user-defined functions, such as door strikes and lighting. These can be named in the properties of the function block and are then available in the user interface to control the corresponding output.

A double-clicking on the block allows you to select Audio Player blocks. These will then play the doorbell sound when the doorbell is rung.

User Interface and Operation

Once the configuration is saved in the Miniserver and it has restarted, the Intercom functions are available in the user interface and App.
The video image can be viewed, calls can be accepted, and programmed functions, e.g. a door opener can be activated:

When the bell button on the Intercom in pressed, a notification with an image of the visitor is displayed on mobile devices. From the notification, you can accept the call or open the App.

These notifications may be restricted on some iOS devices if the "Private Relay" service is active.
If this is the case, the notification will not display an image. Instead, the Loxone App is opened to access the functions of the notification and to display the image.
On iOS 15 devices, the connection to the Miniserver may be interrupted when establishing the video connection.
The following steps may help in some cases:
- Close the video view and try again
- Use a different network (WiFi / mobile network).
Apple is aware of this issues and will provide a fix with a future iOS update.

Video and audio connection are not supported in the web interface of the Miniserver Gen. 1.
The Loxone Apps, on the other hand, do fully support the Miniserver Gen. 1.