Grandstream GBX20 IP Phone Extension Module
Key Features of GBX20 :| 4.3-inch (480×272) TFT color LCD |
| Supports up to 40 contacts per module |
| Expandable to 160 contacts with 4 modules |
| Compatible with select GRP and GXV IP phones |
| Easy firmware upgrades through host phone |
Grandstream GBX20 IP Phone Extension Module
৳0.00
Specification: