LCD extension module

LCD extension module Grandstream GXP2200EXT

Grandstream GBX20

Home  »  Grandstream GBX20

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.

Busy Lamp Field

Call Transfer

Call forwarding

Call queue

Scroll to Top