Phone interviews are the best, so much easier than face-to-face interviews!! What I did when I had mine was I wrote up a sheet that I kept in front of me, of questions they might ask and my responses to them lol (they almost always ask some of the same ones like, what are your strengths/weaknesses, etc.). Also I listed some talking points so I would be sure to list some of my major achievements, and really whatever set me apart from everyone else.
Plus, you can interview in spiderman pajamas and no one will ever know! (for the record, I do not speak from personal experience! )