Elvox 8878/F compatible with Nuki opener

Hi to the community,

i tried to check the website with the compatible check, Elvox Intercoms are listed, but on my model 8878/F it says unknown device, for any reason. Does this model running with nuki opener?

Does really nobody have any idea for this one?

Strange that nobody in the community or from NUKI itself has any infos about this very common model.