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Xblue Networks X16 2-Port Expansion Card works with the Xblue X16 Business Phone System.
This inexpensive card brings two (2) additional POTS lines into the x16 KSU. You simply remove 4 screws to remove the cover of the KSU. Attach the ribbon cable of the expansion board and screw the board down and replace cover. No KSU programming is required to activate these new lines.
Note: Only one (1) expansion board per x16 KSU
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