Re: May I ask who's calling / Who is this? - Edit 1
Before modification by BlackAdder at 22/09/2010 08:35:13 PM
I ask this "informal" way, because the answer to the question, "May I ask who's calling?" is, "Yes, you may".
I don't think that's right, but I'm no English guru. I'd be interested to see others' answers.
For example, when someone asks "may I know your name(, please)?" the answer is not "yes, you may"