I answered the phone and after she asked who she had the pleasure of speaking with, I asked for her name.  She asked me why I wanted her name--told her (a) because she just asked for my name and she interrupted me and (b) I needed to know how to report her unsolicited call.  She laughed and asked again for her name, if she knew it.  After going back & forth for a while, she hung up on me.  I tried calling back and the call would not go thru so apparently it was an invalid number coming thru on caller ID.