I have recently begun to notice that I have no data during phone calls. Curiously, this is even when the phone is connected to wi-fi. I noticed it a month ago, when after a few minutes into a call, the Line messaging app raised a notification that it had no connection. Sure enough, I couldn't do anything online until I ended the call. Then I tested mobile data, and noticed the same problem.
The first time I noticed this problem, I was running PSX version 2 ROM, Hells-Core b43 kernel, and the hybrid 33/84 radio. Now I'm running OmniROM (with its kernel) and the 98 radio, yet the problem persists.
Any pointers to how I can fix this? Or is it a problem that everyone's had to learn to deal with -- and I'm just late noticing it?