3.
Remove the 4 tabs on the top cover of Expansion Shelf 3, by using a flathead screwdriver, as shown
below.
Expansion Shelf 3
4.
Fasten the wall brackets loosely to Expansion Shelf 3 with 4 screws (D). (This makes it easy to adjust
the position of the shelves later.)
Screw (D)
Wall Bracket (Left)
2.2 Installation of the Hybrid IP-PBX
Wall Bracket (Right)
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