Is this the second time you've posted this question??? I thought I saw this yesterday... Anyway, it would help if you provided more information.
What phone do you have?
What happens when the phone rings? It sounds like there's no display but does anything else seem to happen?
Does the screen work? I mean does it light up and is it usable at all? What happens if you call out?
What have you tried? Have you tried any troubleshooting tests? i.e. having the screen on and have someone call you, call twice back to back to see if it is just the initial call....
Maybe something I've said will help you but there's really not much we can tell you without good information to go on. You can reply to this thread by creating an account. Moderators will shut you down if you make new threads asking the same question. This link will help you create an account and get started...
https://forums.androidcentral.com/ask-question/409154-join-android-central-community-new-post.html