Unable to receive incoming calls
Hi, I was informed by other friends that they have been unable to get through to my mobile number. My phone is always switched on and connected to 4G. At times, my phone did not even ring when they tried to call me. On their end, they got the notification that my line is disconnected/unable to get through.
I have no issues making outgoing calls, but unable to receive incoming calls. I have tried changing mobile device but I still do not receive some incoming calls. Please advise, thank you.