5 weekly phone calls you should make to advance your career

Calling former collaborators can give new insights into current and future projects.MoMo Productions/Getty Images
Making a series of weekly calls to mentors and collaborators can help you advance your career.
Choose people to bounce ideas off of and others in jobs or at companies that you admire.
Call people who 'stretch' you by challenging your expertise and holding you to a high standard.
Earlier this year, I wrote about the seven emails you should send every week to get ahead in your career.