Connection cut off with just a phone coming

How do u guys play the arena with your phone when just a incoming call will disconnect the fight which requires reload.
Why this is not fixed from day one?

I just press the ignore button. Doesnt disconnect the fight for me

That’s strange, i also tap reject button, and the fight was hang, twice today with same reason.
Also the alliance page was not updated or refreshed, can’t even see my own message written or new post by others, only after reload, wonder if others has same issue.

I can answer and still play. I just select speakerphone