The GXP2200EXT is a backlit LCD extension module supported by GXP2140, GXV3240 and GXP2200 Phones. This module includes 20 Direct line keys as well as two arrow keys (red and green) used to navigate between pages.
The GXP2200EXT allows up to 40 contacts directly. For a total of 160 contacts, 4 GXP2200EXT modules can be used for compatible GRANDSTREAM Phones.

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