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NEC DS1000 Expansion Board, 80221 (New, Two Year Warranty)

This board expands the NEC DS 1000 telephone system to its full capacity of 6 C. O. lines and 16 phone stations. Adds second Analog Doorbox port and second Relay. Caller ID capability (must order Caller ID Service from Local Phone Provider).

One per system.

Part # NEC 80221

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Applied Voice and Data
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Rochester Hills, Michigan 48309

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