What type of details about robert cohn  can be gathered from the following bio?  Bio: robert cohn is an entrepreneur and businessman known for the founding of octel communications , the company that commercialized voice mail and was largely responsible for making it ubiquitous on cell phones , in companies and on residential phones . in 1982 , cohn founded octel communications corporation . he served as chairman and ceo of octel from its inception in 1982 until the company was purchased by lucent technologies in 1997 . he then served as an executive vice president of lucent technologies , inc. and retired april 30 , 1999 . from 2002-2004 , cohn was a partner with sequoia capital . he currently mentors and advises select first-time ceo 's and rising stars in technology businesses . before octel , cohn held positions with mckinsey & company , and banque rothschild in france . he has a bs degree in mathematics and computer science from the university of florida and an mba from stanford university 's graduate school of business .
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