Opener: Notification/reaction for different ring tones

Discussion Questions
1

My opener is connected to a Siedle BTSV 850-03. There are different ring tones for the main door and the door to my apartment, which I have no way to configure or change.
I configured the opener to react to the ringtone to the main door.
However, the opener does not react to the (different) ringtone for my apartment.

Is there a way to configure the opener that it also notifies me of the second ring tone? If not, please add the detection and notification of secondary ring tones.

Thanks,
Roland

2

The apartment doorbell switches are often wired directly to your internal intercom unit as analogue signals.
So the communication is not through the bus where the Opener listens.

3

You are correct, I checked and there are two wires directly connected from the switch to ETb/ERT in the BTSV.
Is there any other way to send that signal to the opener?