Grandstream GBX20 Extension Module

The Grandstream GBX20 Extension Module adds flexibility and convenience to the Grandstream GRP2615 and GXV3350 IP Phones. The GBX20 module adds features that are ideal for businesses managing high call volumes. 

Grandstream GBX20 Extension Module Overview 

The GBX20 offers the ability for users of the Grandstream GRP2615 and/or the GXV3350 to extend their contact list by up to 40 extensions per each GBX20. A total of 4 GBX20 modules can be connected together for a total of 160 contacts. The GBX20 has a color 272x480 LCD display and supports features such as BLF, call park/pick up, intercom, call forwarding and many more. 

Grandstream GBX20 Features and Specifications: 

• 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