How you text someone from your cell number using a diff number?
There are websites for that where it can change your number for the call/text, but I am not sure if they can reply if they do I believe it goes back to the fake number(The persons number your impersonating).
All u can do is *67 it and it will come up as unknown
U can't unless u use *67 but I don't think they can call or text u back. Unless u have a smart phone, then just download apps