Grandstream GBX20 Extension module for GRP2615, GRP2624, GRP2650, GRP2670, GXV3350 and GXV3450. 480×272 color LCD, 20 dual-color buttons, 2 pages, Daisy-chain up to 4 modules

Grandstream GBX20 Extension Module – Color LCD, 40 BLF Keys

Enhance your call handling capabilities with the Grandstream GBX20 Extension Module, designed to expand the functionality of compatible Grandstream IP phones and improve productivity in high-call environments.

🔹 Key Features:

• 🖥️ 4.3” color LCD display (480×272) for clear visibility
• 🔘 20 dual-color programmable keys with support for multiple functions
• 🔁 2 pages (up to 40 virtual keys) for extended control
• 🔗 Daisy-chain support up to 4 modules for maximum scalability
• ⚡ Seamless integration with supported Grandstream IP phones
• 🎯 Ideal for BLF, speed dial, call park, and more

🔹 Compatible With:

• GRP2615, GRP2624, GRP2650, GRP2670
• GXV3350, GXV3450

🔹 Ideal For:

• Receptionists and call operators
• Offices with high call volume
• Businesses needing advanced call management

🔹 Expand Your Productivity:

The GBX20 allows you to manage more calls efficiently with quick access to multiple lines and functions—making it a perfect addition to professional desk phone setups.