What do you mean by iPhone calling?
This is all a bit fishy. If you want to disable it just turn off location services. If that's restricted by your mum and dad then your out of luck.
I'm Sorry, but thats not my goal... I have lost my iPhone 7, and it was for about 1 min online with send an location. after that, it don't was online anymore. but i could reach the phone by trying to call my number.