Dear prospective employer

You had a pretty, friendly voice, and you sounded very nice, but if you're going to call me about the ...inter...w...p...ce...ss please, don't call me on your cell phone when all I can hear of your phone number is 5....3.....3...5....0... because now I'm climbing the walls freaking out that you want to hire me and I can't even call you back. My phone even recognizes you as 'unknown caller' so I can't even get your number that way. I'm sorry. I don't want to seem unprofessional, not calling you back, but I just don't have your number! My resume has my email address on it- please, use that! 99.9% of the time, I get the full email!

ok, sorry...
please call back.
Sincerely,
R....ie... N....m...