Video door intercom system - Which one is recommended?

thanks for the info, I will check it today. At the beginning, everything was also working....

Good evening community,
since our developer went bankrupt at the beginning of the year, I have to gradually fix or install some things myself.

Currently, it's about the doorbell system with video and, if possible, with fingerprint.

I have a question of understanding regarding the fingerprint and front door. As far as I can see, our front door has a door opener for the doorbell. Is that sufficient to enter the house using the fingerprint, or do I need a special lock / locking device in the door for that?
I hope that the fingerprint works similarly to the door opener function of the indoor unit and that the latch then buzzes for about 5 seconds, for example. Am I right?

A green 4-core cable leads outside. According to research, it should be an EIB cable 4x0.8mm.

All cables (EIB) end up in the fuse box:
Outside -> fuse box
Door opener -> fuse box
Inside ground floor -> fuse box
Inside upper floor -> fuse box

Is this wiring sufficient for my project?

Thank you very much for your help.

Regards, Michael

It all naturally depends on what equipment was installed with you. The EIB cable alone does not say anything at first.

Hello and happy new Mycraft,

nothing has been installed at all. I now have to deal with purchasing a doorbell. Financially, it was not possible in recent months due to the insolvency and overpayment of the developer.

So far, only the above-mentioned wiring is in place. My question was whether this wiring makes it possible?

Ah ok, I understand. You can repurpose the EIB cable and use it for any 2-wire doorbell system.

Hello, I tried 3 pieces and the best for me is the Busch welcome. Picture and sound including software simply perfect.