Am using Mi 8 with MIUI version 10.3.2.0(PEAMIXM) and android 9 PKQ1.180729.001. Recently I had to make web base calls which will call my mobile number to connect. I noticed that when I am connected to mobile phone on the call, internet will drop to H+ and almost no internet connection or very very slow connection. For example during the call, I am not able browse the internet at all and my web-based conference screen would drop off, only leaving me with my call. When I hang up the call, data immediately became 4G+ and I could start serving the net again.
Anyone knows the issue and how to solve it?