[Feature]: Implement call_door service for live video without doorbell event

[steidl60]

Beschreibung

I would like to request support for initiating a live video session from Home Assistant without a previous doorbell event.

The official Siedle App already supports this functionality ("Last Door / Video"), allowing the user to start a live audio/video connection to the door station at any time.

While investigating the integration, I noticed that a call_door service already seems to have been planned (SERVICE_CALL_DOOR in const.py and call_door in services.yaml), but it is currently not implemented.

I would like to understand whether this feature is technically possible and, if so, whether it could be implemented in the integration.

Anwendungsfall

I am using this integration with a Siedle SG650 and Home Assistant.

Everything currently works perfectly:

• MQTT
• SIP
• Doorbell detection
• Door opener
• Door light

I also verified the complete BPS650 configuration.

The Home Assistant endpoint is configured as an App participant, is assigned to the correct IP group and the virtual bus participant is assigned as a destination for the doorbell button.

The original Siedle App can initiate a live video session without a previous doorbell event ("Last Door / Video"), exactly like the physical indoor station.

This allows viewing the live video at any time for the configured conversation duration (up to 10 minutes).

I would like to have the same functionality available from Home Assistant.

Alternativen

I investigated the source code and noticed that:

• SERVICE_CALL_DOOR already exists in const.py
• call_door already exists in services.yaml

However, the service is currently not registered and I could not find any implementation.

This made me wonder whether the feature was planned but could not be completed.

During my investigation I confirmed that:

• the official Siedle App can start a live video session without any previous doorbell event,
• therefore the SG650 definitely supports initiating an active door connection,
• this functionality is not limited to the physical indoor station.

My question is:

Was the call_door service never implemented because

• the required REST/API endpoint could not be reverse engineered,
• the required SIP INVITE target is unknown,
• or for another technical reason?

I'd be happy to help testing experimental versions.

I have access to:

• SG650
• official BPS650 programming software
• Home Assistant
• working MQTT
• working SIP
• working doorbell detection
• complete system configuration

Thank you very much for your excellent work on this integration.

Zusätzliche Informationen

The Home Assistant endpoint must not only be assigned to the correct IP group but also be assigned as a virtual bus participant for the doorbell button. Otherwise the integration never receives the doorbell event although SIP forwarding works correctly.