calls going directly to voicemail on iphone 11 pro

Are you not hearing them ring? Do you have Do Not Disturb turned on? If you do not have DND turned on, and callers are telling you that the call is not ringing but going straight to voicemail, then contact your carrier to see if they have conditional call forwarding turned on for your account, or some other issue.

You're welcome. Glad it was on the carrier side, that shows there is no problem with your iPhone.