New to me, but on the Rogers/Shaw web site, it is not possible to un-hide caller ID.  By default, "Hide my caller identification from other numbers" is turned on, and in Rogers' red, the note "This setting is not available".  See attached screenshot. 

My brother protects himself from some scammers by blocking calls that do not have a caller ID, so I can't call him.  Or anyone else that uses this form of protection. See Rogers/Shaw:   Privacy Settings / Block Calls / Anonymous calls. 

This is new behaviour.  I was transferred without notice to "My Personal Phone [DIGITAL PHONE] PLAN" at some point in the past so it may be a new feature.