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COVID-19: As a designated essential telecom solutions provider, EXFO remains fully operational with our employees' health and safety as our top priority.

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Glossary

Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.

Regional Bell Operating Company (RBOC)

One of the seven local telephone companies formed upon the divestiture of AT&T. The seven are: NYNEX, Bell Atlantic, BellSouth, Southwestern Bell, US WEST, Ameritech, and Pacific Telesis.

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