Frank Dunn joined Nortel Networks (when it was still known as Northern Electric) as a managment trainee in 1976, after graduating from McGill University. He was appointed CFO in 1999 under CEO John Roth. After Roth retired, Dunn became the CEO in November, 2001 until he was fired for cause, along with several financial executives in April, 2004. He is under investigation by the U.S. Securities and Exchange Commission, as well as by the Ontario Securities Commission in Canada, and is charged for reporting faulty annual results since 2000. He is also named in several class action suits initiated by disgruntled shareholders. Construction was stopped on the multi-million dollar home that Dunn was building on prime lakefront property in Oakville, Ontario, and was listed for sale shortly after his dismissal from Nortel. The incomplete residence was sold in 2005 for an undisclosed amount. Nortel Networks Corporation, formerly known as Northern Telecom Limited and now familiarly known simply as Nortel, is a telecommunications equipment manufacturer giant headquartered in Canada. ... McGill University (Université McGill), is a publicly funded, research-intensive, non-denominational, co-educational university located in the city of Montreal, Quebec, Canada. ... John Roth, is the former CEO of Nortel. ... The U.S. Securities and Exchange Commission, commonly referred to as the SEC, is the United States governing body which has primary responsibility for overseeing the regulation of the securities industry. ... The Ontario Securities Commission administers and enforces securities legislation in the Canadian province of Ontario. ...