Grandstream GBX20 4.3" Extension Module
Features:
- 4.3-inch Color LCD Display
- 40 Programmable BLF/Speed Dial/Extension Keys
- Daisy-chain Support
- Multi-Functional.
- Compatibility
- Power Supply
- Easy Installation
Additional Features:
- 4.3-inch Color LCD Display – Provides a clear and easy-to-navigate interface for additional lines and functions.
- 40 Programmable BLF/Speed Dial/Extension Keys – Equipped with 20 dual-colored line keys (per page) and the ability to switch between two pages, allowing a total of 40 programmable keys for Busy Lamp Field (BLF), speed dial, call park, and other extensions.
- Daisy-chain Support – Up to 4 modules can be connected to compatible Grandstream IP phones, expanding the number of programmable keys further.
- Multi-Functional – Supports advanced call handling features such as call transfers, call forwarding, call parking, and more through the programmable keys.
- Compatibility – Works with Grandstream’s GRP2615, GRP2624, GRP2636, and GXV3350 series phones, seamlessly expanding the user interface.
- Power Supply – The module is powered directly from the host phone, eliminating the need for an additional power supply.
- Easy Installation – Plug-and-play design makes it easy to connect and configure with compatible devices.