6.Using the keypad configuration menu or phone's embedded web server (Web GUI) by entering the IP address in web browser, you can further configure the phone.

GXP2120/GXP2110 EXTENSION MODULE

GXP2120/2110 supports two extension units, providing up to 112 additional programmable extensions. Each GXP Extension unit has 56 multi-purpose keys, dual color LEDs (red/green) and support BLF (Busy Lamp Field) and Presence.

GXP2120/2110 Extension package contains:

1 GXP Extension unit

2 connection cables

GXP2120 with GXP Extension

GXP Extension

Reverse side of connection with connection

GXP2120/2110 has a special port on

plate

the back

Figure 1: GXP2120/GXP2110 Extension Board Connection

Connect the first GXP EXT to the GXP2120/2110 using the connection cable found in the GXP Extension package. The first GXP EXT draws power directly from the phone. Connect the second GXP Extension unit using the connection plate and the connection cable. The GXP2120/2110 will automatically reboot and power up the GXP Extensions. Grandstream recommends, though not required, to use a separate power supply with the second GXP EXT.

FIRMWARE VERSION 1.0.4.23

GXP2120/GXP2110/GXP2100/GXP1450 USER MANUAL

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Grandstream Networks GXP1450, GXP2100 GXP2120/GXP2110 Extension Module, GXP2120/GXP2110 Extension Board Connection