GBX20
GBX20
Extension Model
The GBX20 is a backlit LCD extension module supported by the GRP2615, GRP2624, GRP2650, GRP2670 carrier-grade IP phones as well as and GXV3350 and GXV3450 IP video phones. 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.
GXP2200EXT
GXP2200EXT
Expansion Module
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, GXP2170 and GXV3240.