My phone is crazy, who can

I have a Huawei P8lite and if I want to call, dial it, but then stop. The caller gets because call, but when he calls back, the conversation breaks off with me again.

Is this possibly attitude thing or is the phone broken?

Handy once restarted and checked for updates? What does the network cover say?

If it is in any place then make a backup and reset it to factory settings…

OK, I'll try it

Probably the only way you might want to try another Sim first