Gxp2000 Extension Board - Grandstream Networks GXP-2000 User Manual

After wall mounting the main body of GXP-2000, user will need to pull out the tab
(extension downward) from handset cradle on the top of the handset rest, and rotate the
tab and plug it into the slot with the extension up for handset holding.

2.4 GXP2000 Extension Board

GXP-2000 supports up to 2 extension boards from firmware 1.1.1.1. GXP2000
Extension Board expands more Multi Purpose Keys for advanced business phone
applications. One GXP2000 Extension Board carries 56 Multi Purpose Keys. Simply
connect the extension board with GXP2000 via PS2 cable in the same package, the
GXP2000 will automatically reboot itself and initiate the extension board.
7