NEC DSX40 Kit has an initial configuration that starts with 4 incoming lines, 8 digital station ports and 2 analog station ports with the capability to expand to 6 incoming line, 24 digital station ports and 18 analog station ports.
Includes:
(1) Key service unit (4x8x2) ----Part # 1090001
(3) 22- Button Display Telephones ----Part # 1090020
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