iPhone 5 has no ‘show my caller id’
My iphone 5 does not have a ‘show my caller id’ option/button. When I call people it shows up as ‘unknown number ‘ or ‘private number ‘. I did not change this on my phone. When I go to ‘Settings’, then ‘Phone’, there is No ‘Show my caller id’ option anywhere. I’ve searched everywhere for it. Help....
iPhone 5, iOS 10.3.1