Can anyone make an educated guess on how to wire so the door bell rings?
The flat used to have door phone entry system, but it doesn't work anymore. So it is used as normal bell. In flat we had a phone, but builder removed when fixing the wall. Now I have 4 cables sticking out with no bell, I need to install a bell using these cables.
4 cable colours: blue, white with blue stripes, orange, and white with orange stripes.