Hey guys im looking for help. Im new to this forum so my bad for any rules I migjt be braking including posting in the wring place and what not. Anyways lets get to the point. My samsung galaxy s4 for at@t cannot make or accept calls. The problem came randomly, I did not do or perform anithing that could have caused this problem. I have 4.2 on it and it is rooted. When I call their is no dial tone which I think is the problem. Ive found that many people have this problem and ive tried alot of things already.