LG Volt 4G not receiving calls?

[epicowl]

Once in a while (it's been happening more often lately) my LG Volt 4G won't receive calls. If the person that calls me leaves a voicemail, I won't get a notification for that, either, but the voicemail is there. Can someone tell me how to fix this?

 

[B. Diddy]

Welcome to Android Central! Do you have any difficulty making calls? Have you spoken to your wireless provider about this?

 

[epicowl]

I don't have any difficulty making calls at all. I'm planning to call my provider (virgin mobile) tomorrow. I'm trying to see if there is any fix before I call them.