ID call not working

[Yorimayo]

I get this screen more and more when a receive calls and doen't show the caller. How can I fix it?
Thanks

 

[Rukbat]

You can't - the caller is making the number unavailable. (That usually means it's someone trying to sell you something, so answer like a voicemail recording and, if it is, hang up. It will usually start going into its sales speech after your first word, totally ignoring you - that's your sign to hang up.)

 

[Yorimayo]

Thank for your reply, I should say that even the numbers in my contacts list appears like that. like my wife's, my son's etc.

 

[Devhux]

Sounds like you might need to contact your provider to verify Caller ID is working properly on your line.

 

[Yorimayo]

thanks