GRANDSTREAM NETWORKS GBX20
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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.
• 4.3 inch (272x480) TFT color LCD
• 20 per page (each module contains 2 pages, for up to 40 lines per module
• Combine up 4 daisy-chained modules for 160 contacts/extensions
• BLF, call park /pick-up, speed-dial, presence, intercom, voice conferencing transfer/forward and more