I can't make/receive calls anywhere but can text

It doesn't matter where I am, I cannot make or receive phone calls! I can still text, surf the web, play apps, and everything else but cannot call anyone or ansser calls being made to me. What is going on? I cannot even call the Cricket service number! Whenever I make a call, it rings a few times then hangs up all on its own and says there is an issue with the network. I have never had this happen on any device before!