📄 Product Description

The Grandstream GBX20 is a high-performance LCD extension module designed to enhance the functionality of compatible Grandstream IP phones, including the GRP and GXV series. It is ideal for receptionists, operators, and professionals who need quick access to multiple contacts and advanced call handling features.

The module features a 4.3-inch (480×272) color LCD screen with 20 physical keys and 40 virtual multi-purpose keys (MPKs), providing efficient access to BLF (Busy Lamp Field), speed dial, call transfer, and more.

Up to 4 GBX20 modules can be daisy-chained to a single compatible phone, offering up to 160 programmable contacts/extensions, making it perfect for high-volume environments.

The GBX20 integrates seamlessly with Grandstream IP phones and supports plug-and-play setup, ensuring easy deployment without complex configuration.

⭐ Key Features

• 🖥️ 4.3” Color LCD (480×272) – Clear and intuitive interface
• 🔘 20 Physical Keys + 40 Virtual MPKs – Advanced call handling
• 🔗 Supports up to 4 Modules – Expand up to 160 contacts/extensions
• 📞 BLF, Speed Dial & Call Transfer – Efficient communication management
• ⚡ Powered via Host Phone – No external power required (on supported models)
• 🔄 Plug-and-Play Setup – Easy installation and configuration
• 🎯 Seamless Integration – Works with GRP2615, GRP2616, GRP2650, GXV series
• 🔐 Enterprise-Grade Performance – Reliable and scalable solution

📊 Technical Specifications

🎯 Use Cases

• Reception desks and front office
• Call centers and operator consoles
• Executive assistants managing multiple lines
• Businesses with high call volumes
• Enterprise VoIP deployments

🔗 Useful Links

• 🔹 Official Product Page: https://www.grandstream.com/products/ip-voice-telephony/ip-phone-accessories/product/gbx20
• 🔹 Datasheet (PDF): https://www.grandstream.com/hubfs/Product_Documentation/GBX20/Datasheet_GBX20_English.pdf
• 🔹 Compatibility Guide: https://www.grandstream.com/products/ip-voice-telephony/ip-phone-accessories

🛒 Why Choose GBX20?

The Grandstream GBX20 is the perfect accessory for businesses that need enhanced call control and visibility. With its large display, multiple programmable keys, and scalable expansion, it transforms your IP phone into a powerful communication console.