I didn't want to answer anonymously. My first time :-). Greetings, Triz

Hello, I had the same problem. When setting up the app, you had to enter your own number. In the clock, the 0 then appears after the country code for your contact. This must be deleted in the Clock Contact menu, e.g. for Father. Then the child can also call from the clock. Tell me if that was it in your case.