A while back, I went through a brief period of unemployment. After fixing up my resume to stand out from all the other job seekers, I started getting a lot of calls back from potential employers. The thing is, I ran into another problem - less than one in four phone interviews led to an in-person interview. Related: 6 Tips To Ace Your Phone Interview I knew I had a problem, so I started studying everything I could about interviewing, as well as conducting mock phone interviews with my friends and asking for honest feedback. Within a week, I was able to identify five issues that were holding me back, and after fixing each of them, my success rate tripled - five of the next seven phone interviews resulted in an invitation to interview on-site. Since then, many people I’ve worked with have had similar results. By addressing the following five issues, you too can double, triple, or even quadruple your callback rate.