Edit Product Description Save and continue editing Save changes Sku LS Description Alloy Description <strong>GR-GBX20<br></strong><br>The GBX20 is an Extension Module that adds functionality versa tility and flexibility to Grandstream’s GRP2615 Carrier-Grade IP Phone and GXV3350 IP Video Phone. It f eatures 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 sol ution for businesses and receptionists managing high call volumes the GBX20 ensures maximum productiv ity by efficiently monitoring and dispatching incoming calls.<br><br>Features<br> <ul > <li>4.3 inch 272x480 TFT color LCD</li> <li>20 per page each module contains 2 pages for up to 40 lines per module</li> <li>Combine up 4 daisy-chained modules for 160 contacts/extensions</li> <li>BLF call park /pick-up speed-dial presence intercom voice conferencing transfer/forward and more</li> </ul> Alloy Short Description LCD EXTENSION MODULE FOR GRP2615 AND GXV3350 ONLY Alloy Features & Benefits MMT Description DS Description DS Features HTML Icecat Description Icecat Short Description Icecat Features Icecat Specifications Icecat Middle Description Icecat Long Summary Are you sure you want to %action_name%?