I deal with this just about every day. I work in a medical office. I speak to new patients on the phone and then when they come into the office, the typical response is " Oh, YOU'RE the person I spoke to on the phone?"
The other thing I get very often is being mistaken for someone else (on the phone). This I don't mind so much, but it's when people ASSUME I'm caucasian and then give that shocked attitude(after they see me) and then make some crack like " Well, you sound so EDUCATED

"
Don't even get me started on the events of my childhood....
Ninja Poodle