Compatible with Grandstream IP Phones: GXV3350, GXV3450 and GRP2615/2624/2650/2670
Eigenschappen:
- Compatible with Grandstream IP Phones: GXV3350, GXV3450 and GRP2615/2624/2650/2670
- 20 per page (each module contains 2 pages, for up to 40 lines per module, up to 160 with 4 daisy-chained modules
- 4.3 inch (480×272) TFT color LCD
- Local GUI with animation driven from the host GRP2615 or GXV3350 phone; Multiple line/call appearances
- GBX20 firmware is upgraded by direct network download through host phone network connection and firmware upgrade setup (GDMS)






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