The story
Etymology from Wiktionary, CC BY-SA 4.0.
Centrex
Today it means: A service similar to a private branch exchange, but providing switching at the central office instead of at the customer's premises. Full definition →
Today it means: A service similar to a private branch exchange, but providing switching at the central office instead of at the customer's premises. Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.