When I was still very diligent with job hunting a few years back, I would always be anticipating to get a call from the company where I submitted my application. I realized how one missed call could mean letting one great opportunity to slip from your fingers. I know this well because I have experienced not being able to take one call only to find out that it was from one of the companies I applied to. I was just unfortunate that I don't live in the US or Canada in order for me to be able to get help from a Reverse Phone Registry. If I did, I would have probably taken that job.