why cant i make phone calls?

best answer
Go to Settings > Focus > Do Not Disturb and make sure its off. Check for any blocked phone numbers. Go to Settings > Phone > Blocked Contacts. See if Call Forwarding is turned on. Go to Settings > Phone > Call Forwarding and make sure its off. Check to see if Silence Unknown Callers is turned on. If the setting is on a caller must be listed in your Contacts or Recents.