Bell-Northern Research (BNR) was a telecommunications research and development organization that was eventually absorbed into Nortel. BNR was based in Ottawa, Ontario, Canada, with campuses at locations around the world. Bell-Northern Research pioneered the development of digital technology, and created the first practical digital PBX, (SL1), and central office (DMS).
David Pierre Leibovitz worked at BNR/Nortel between 1988 and 2002
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