Grandstream Networks GBX20 caller ID display Grey

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.

Technical details
Phonebook capacity:	40 entries
Wall mountable:
Caller ID:
Package weight:	700 g
Colour
Product colour:	Grey
Weight & dimensions
Depth:	33.5 mm
Width:	124 mm
Height:	210 mm
Weight:	360 g