When I am recruiting for clients I call people who have sent in their resume and phone number. If the answering machine message says something like "hey dude..out surfing right now man..." (I have actually heard that...) I do not leave a message or call back.

So if you are looking for a job...or for any reason will be receiving professional calls...make sure you answering machine message sounds "grown up" and let's the caller know who they have reached.

I am also hesitant to leave a message if if I do not hear at least a first name that matches the resume.

You can always change it back once you are employed!