Extension Modules

An easy-to-setup extension module that is ideal for increasing call control efficiency for receptionists, executives or any high-volume user. Any attendant will enjoy maximized productivity by monitoring and dispatching multiple incoming calls with our Extension Modules. The GXP2200EXT pairs with our GXP2140, GXP2170, and GXV3240. The GBX20 extension module pairs with both the GRP2615 and GXV3350.

Picture of Grandstream GXP2200EXT IP Phone extension

Grandstream GXP2200EXT IP Phone extension

GSTR-0016
Equip any desktop with superior call control, network visibility and in-call flexibility. The GXP2200EXT extension module provides greater network control for high-call volume users with its backlit LCD display, BLF and Speed Dial keys and additional contacts/extensions per module. Supported by the GXP2140 and GXP2170.
$127.67 incl tax
Picture of Grandstream GBX20 EXT IP Phone Extension Module

Grandstream GBX20 EXT IP Phone Extension Module

GST-0093
The GBX20 is a backlit LCD extension module supported by the GXV3350 and GRP2615. The module includes 20 dual-colored extension keys and 2 arrow keys for page switching (allowing each GBX20 to support up to 40 contacts/extensions.). Connect up to 4 GBX20 modules to compatible Grandstream phones for a total of 160 contacts/extensions.
$168.20 incl tax