Grandstream GBX20 Extension Module

The Grandstream GBX20 Extension Module extends the capabilities of the GRP2615, GRP2624, and GXV3350 IP phones with additional programmable buttons and a color LCD display. The Grandstream GBX20 provides a total of 40 programmable buttons that can be used for directory numbers, speed dial, or feature keys. The Grandstream GBX20 is ideal for receptionists or users who handle heavy call volumes. Features Programmable Buttons: 40 programmable buttons with LED’s (20 buttons, 2 pages) Monitor Line Status: Programmable keys support advanced features such as Monitor Call, Monitor Phone, Transfer, Park, and Speed Dial Display: 4.3-inch, 272x480 pixel resolution, backlit color LCD display Expandable: Up to 4 GBX20 modules can be added per phone Simplify Dialing: Programmable buttons can be used for directory numbers, speed dial, or feature keys Compatible Telephones Grandstream GRP2615 IP Phone Grandstream GRP2624 IP Phone Grandstream GXV3350 IP Phone Power Requireme