How do I stop incoming calls going straight into voicemail in my Asus Zenphone 5?

[AC Question]

I have an Asus zenphone 5. The incoming calls are going straight into my voicemail. How do I stop it?

 

[B. Diddy]

Welcome to Android Central! All calls, or only from certain contacts? Are you able to make any calls yourself? Have you spoken with your carrier about this?