Germany is hard. Technician from O2/Telekom came to connect me to the internets (finally, after 1 month of waiting!) and we could not find the phone socket. Although the phone cable with RJ11 was there.
Only now i thought that i could suggest to attach splitter to the cable. How do you think, would it work?
You should not attach a splitter to the cable unless O2 asks you to.
@maddin why not?
All telcos in Germany are switching to VOIP. Usually you don‘t need a splitter anymore. It could harm your connection.