Grandstream GBX20 Extension Module with 4.3” Color LCD, 20 Dual-Color Keys, Supports 160 Extensions

The Grandstream GBX20 Extension Module expands the functionality of Grandstream IP phones. It is ideal for businesses and receptionists managing high call volumes.

This module features a 4.3-inch color LCD display with 20 dual-color keys and 2 arrow keys for easy page switching. Each module supports up to 40 contacts/extensions.

When connected with compatible IP phones like GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, and GXV3450, users can connect up to 4 GBX20 modules. Together, they support a total of 160 contacts/extensions.

The GBX20 supports advanced call features such as BLF, call park/pick-up, speed dial, presence, intercom, transfer/forward, and voice conferencing. With its vibrant LCD display, sleek design, and powerful functions, the GBX20 ensures high productivity and efficient call management.

Key Features:

• 4.3-Inch Color LCD Display – Bright and clear for easy navigation.

• 20 Dual-Color Keys – Expandable up to 40 contacts/extensions per module.

• Supports Up to 160 Extensions – By connecting 4 modules.

• Advanced Call Features – BLF, speed dial, intercom, transfer, conferencing.

• Wide Compatibility – Works with GRP2615, GRP2624, GRP2650, GRP2670, GXV3350 & GXV3450.

• Ideal for High Call Volumes – Perfect for businesses & receptionists.

Specifications: