Grandstream GBX20 LCD Extension Module | GRP & GXV Series Compatible

Overview of Grandstream GBX20 LCD Extension Module

The Grandstream GBX20 LCD extension module is a high-performance expansion accessory designed for power users who need to handle a large volume of calls. Featuring a 272×480 color LCD screen and support for up to 40 programmable keys per module, the GBX20 enhances the functionality of select Grandstream IP phones including the GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, and GXV3450. This module is ideal for receptionists, executives, call center agents, and office administrators.

Key Features of Grandstream GBX20 LCD Extension Module

The Grandstream GBX20 extension module provides up to 40 contacts per module with dual-page support. Up to 4 modules can be daisy-chained to a compatible host phone, enabling up to 160 programmable BLF/speed dial entries. The full-color LCD offers clear, high-visibility indicators for call status, presence, and line activity, improving productivity and call handling efficiency.

Designed for Compatibility and Performance

The Grandstream GBX20 is fully compatible with the GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, and GXV3450 models. It connects directly via the RJ11 module port and is powered through the host phone, simplifying installation. The module is ideal for organizations looking to scale receptionist or operator desks while maintaining sleek aesthetics and functional consistency.

Programmable Keys & Functional Control

Each GBX20 module includes 20 physical keys with 2-color LED indicators, offering dual-page switching for a total of 40 entries per unit. These keys can be programmed for BLF, speed dial, call park, call pickup, presence monitoring, and other call features. Combined with the Grandstream device management tools, the GBX20 can be centrally provisioned and updated.

Why Choose Grandstream GBX20 LCD Extension Module?

The Grandstream GBX20 extension module is the ideal solution for scaling up your IP phone interface without replacing your existing handset. It enhances visibility and control over large call volumes, making it perfect for high-traffic office environments. The intuitive LCD screen and LED indicators provide real-time status updates at a glance.

Product Specifications

• Model: Grandstream GBX20
• Display: 272×480 pixel color LCD
• Keys: 20 physical keys with 2-color LED + dual-page support (40 entries)
• Compatibility: GRP2615, GRP2624, GRP2650, GRP2670, GXV3350, GXV3450
• Daisy-Chain: Up to 4 modules (160 total keys)
• Power: Supplied by host device
• Connection: Via extension module port (RJ11)

Availability Across India

The Grandstream GBX20 extension module is available through IPVoice Technologies with fast nationwide delivery. We serve customers across India in cities such as Delhi, Mumbai, Bengaluru, Hyderabad, Chennai, Kolkata, Ahmedabad, Pune, and Lucknow. Ideal for call centers, reception desks, and customer service hubs.

Conclusion

Expand your IP phone capabilities with the Grandstream GBX20 LCD extension module. With support for up to 160 programmable keys across 4 modules and vibrant LCD visibility, it’s the perfect productivity booster for your Grandstream GRP or GXV series device. Order now from IPVoice Technologies — your trusted Grandstream networking equipment provider in India.