845680255

SPIRIT 1224 EXAPSION CARD - REMOVED FROM WORKING SYSTEM - expansion cards, typically 4x0 line cards and 0x8 station cards, used with the AT&T Spirit 1224 phone system to add incoming lines or telephones. The Spirit 1224 KSU (Key Service Unit) is the base system, and these cards expand its capacity from its default of 4 lines and 8 stations up to a maximum of 12 lines and 24 stations - used