Phone keeps disconnecting on calls

[under13]

My phone keeps disconnecting when I'm on calls, iv got full signal and it still continues to disconnect, iv turned my phone off and on and it's still doing it

[Cleoriff]

@under13 

What phone have you got?

It sounds as if your sim is failing or dirty. Take it out and clean it carefully. Reinsert and reboot your phone.

If that doesn't work then contact O2 for a new one. Guide: Coronavirus Community Help and Support