jaysondenton, make sure Do not Disturb or Airplane mode are not turned ON. If they are not turned on, try going into Settings > Cellular and place Enable LTE in the OFF position to see if that might help.
No trees were harmed by this message. However, several trillion electrons were extremely inconvenienced.
Myself and a few other people I know are having the exact same problem right now. Came on here for answers. I can text them but calls go straight to voicemail. I didn't press anything and they all claim they haven't done anything different either. It was working earlier just fine, this all started about a half an hour ago, please fix soon.
Nevermind, it's seems to have resolved itself.