Grandstream GBX20 Expansion Module

The GBX20 is an Extension Module that adds functionality, versatility and flexibility to Grandstream's GRP2615 Carrier-Grade IP Phone and GXV3350 IP Video Phone. It features a 272x480 LCD display that offers up to 40 contacts per module with support for up to 160 contact s by using 4 modules. The GBX20 supports a wide-range of advanced call features including BLF, call park /pick-up, speed-dial, presence, intercom, voice conferencing transfer/forward and much more. An ideal solution for businesses and receptionists managing high call volumes, the GBX20 ensures maximum productivity by efficiently monitoring and dispatching incoming calls.Grandstream GBX20 Quick Specs:* Compatibility:** Grandstream GRP2615 IP Phone** Grandstream GXV3350 IP Video Phone* Multipurpose Keys: 20 per page for 2 pages = 40 total per module* Display: 4.3" 272x480 TFT Color LCD* Power:** 1 GBX20: through host phone** 2+ GBX20s: with included power supplyGrandstream GBX20 EXT Expansion Module Package Contents:* Gr