Now, I'm not sure if I'm being stupid or not but I've noticed that during phonecalls around 1 minute in I lose all data signal from my operator meaning I cannot access the web during a call.
My 3G is always on. I've tested it a few times and it seems like that when I have a good 3G signal it stays connected but when it switches to Edge or 2g it drops out.
I had the same as well in addition to constant safe mode. I removed all of my apps and everything from the unspeakable repo and all of my issues went away immediately. I'll never go back to the unspeakable repo ever again either. Hope that helps!