pankhiiii , via OnePlus 7 , Jan 27, 2021 : Hi, I am using OnePlus 7. I am using jio and vodophone's phone no. My problem is whenever I get a call it disconnects after 2-3minutes. And someone when tries to call me it say no is switch off. My primary no. Is jio and I am facing this issue on jio no. Coz most of the phone call that I received is on jio no. Please tell how can I resolve this problem.