Đặc tính kỹ thuật
| Model | GBX20 |
| Lines | 20 per page (each module contains 2 pages, for up to 40 lines per module |
| Up to 160 with 4 daisy-chained modules | |
| Compatible Grandstream IP Phones | GRP2615 and GXV3350 |
| Graphic Display | 4.3 inch (272×480) TFT color LCD |
| Feature Support | Local GUI: Multiple line/call appearances |
| Firmware Upgrades | GBX20 firmware is upgraded by direct network download through host phone |
| (GRP2615 or GXV3350)’s network connection and firmware upgrade setup | |
| Power | A single GBX20 can be powered by host phone (GRP2615 or GXV3350); when 2 or |
| more GBX20 are connected the included 12V/1A PSU will power the GBX20s | |
| Temperature and Humidity | Operation: 0°C to 40°C |
| Storage: -10°C to 60°C | |
| Humidity: 10% to 90% Non-condensing | |
| Compliance | 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 | |
| Dimension | 210 x 124 x 33.5mm |
| Weight | 360g |
