My dad is a doctor, and uses his phone to call patients. He is trying to figure out a way to block his number so when he calls a patient, they don't see his number. He looked thru the settings and did not find anything. I have a droid as well but I'm not sure how to do that. Is there somewhere in the settings to do this, if not I imagine there's an app for it. Let me know if you know how to do it. Thanks!