Expansion Module for GXV3350, GRP2615, GRP2624, 20 dual-colored extension keys and 2 arrow keys for page switching (allowing each GBX20 to support up to 40 contacts/extensions.) Connect up to 4 GBX20

Lines 20 per page (each module supports 2 pages), up to 40 lines per module and up to 160 with 4 modules connected in series. Compatible models Grandstream GRP2615, GRP2624, GRP2650, GRP2670, GXV3350 and GXV3450 IP phones Screen 4.3 inch (272x480 dots) TFT color LCD screen Support for functions Local GIP; Indication of multiple lines/calls. Food One GBX20 can be powered by a phone (GRP2615 or GXV3350); 2 or more GBX20S are connected Firmware Update The GBX20 firmware is updated by means of direct download via a connected phone (GRP2615 or GXV3350) using a network connection and firmware update settings. Dimensions and weight Dimensions: 210mm*124mm*33.5mm; Device weight: 360g; Kit weight: 700g Temperature and humidity Working temperature: from 0°C to 40°C Storage: -10°C to 60°C Humidity: 10% to 90% Non-condensing Contents of the kit GBX20 expansion module, stand, module connection bar, screws, USB cable, Quick Installation Guide, 12V/1A network cable Compliance with standards FCC: Part 15 Class B IC: ICES-003 CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1 RCM: AS/NZS CISPR32; AS/NZS 62368.1