I hadn't heard the name Nortel in a long time - I used to work for a company that had a lot of Nortel phone switches. Wikipedia says that they're now defunct, which makes me a little sad.
The dot-com bubble, mismanagement, and accounting shenanigans took it from being ~1/3 of the entire value of the Toronto Stock Exchange and an employer of almost 100K employees to bankruptcy within the span of a decade.