Welcome to our new site! We are continuously working on improving the experience. For all feedback, email feedback at flyteccomputers.com. Thank you for your support.


Grandstream GBX20 Extension 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 contacts 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.

Technical Description

  • 20 lines per page
  • Each module contains 2 pages for up to 40
  • lines per module & up to 160 with 4 daisychained modules
  • 4.3 inch 272x480 TFT Color LCD
  • Local GUI with animation driven from the host
  • Compatible with GRP2615. GRP2624, GRP2650, GRP2670 and GXV3350

More Information