<h1 style='color:#3e60ac;text-align:center;font-family:arial;margin: -5px 0px'>Extension Module</h1>
<h2 style='color:#46a8ca;text-align:center;font-family:arial;margin: -20px 0px'>GBX20</h2><div style='text-align:justify;'>
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.
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Features
• 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
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