GBX20 Expansion Sidecar

Product Details

Grandstream GBX20 – Extension Module

Transform your Grandstream GRP2615 Carrier-Grade IP Phone or GXV3350 IP Video Phone into a powerful call management center with the GBX20 Extension Module. Designed for businesses and receptionists managing high call volumes, this module ensures maximum productivity by efficiently monitoring and dispatching incoming calls. We handle all configuration and provisioning on our side, so you can focus on your business – not on technical setup.

True Plug-and-Play Convenience

Forget complex configurations. The GBX20 connects seamlessly to your compatible Grandstream phone and integrates effortlessly with your Helix Cloud PBX. Just plug it in, and it is ready to manage your calls. No IT degree required.

Expand Your Call Management Capabilities

The GBX20 features a vibrant 4.3 inch TFT color LCD display (272x480 resolution) that provides clear, easy-to-read labels for each programmable key.[reference:0][reference:1] Each module offers 20 programmable buttons with dual-color LEDs, supporting up to 40 contacts per module using two page-switch keys.[reference:2] For ultimate scalability, you can daisy-chain up to four modules together, providing support for up to 160 contacts or extensions.[reference:3][reference:4] This makes it the ideal solution for busy receptionists, call centers, and enterprise environments.

Advanced Call Features at Your Fingertips

The GBX20 supports a comprehensive range of advanced call features to streamline your workflow:

• Busy Lamp Field (BLF) – Monitor the status of other extensions in real time.
• Call Park and Call Pickup – Park calls and retrieve them from any extension.
• Speed Dial – One-touch dialing for frequently called numbers.
• Presence – See if colleagues are available, away, or on a call.
• Intercom – Instant communication with other extensions.
• Voice Conferencing – Set up conferences quickly and easily.
• Call Transfer and Call Forward – Direct calls to the right person every time.

These features empower you to handle high call volumes efficiently, ensuring that no call is missed and every customer receives prompt attention.[reference:5][reference:6]

Reliable, Scalable, and Worry-Free

Backed by Grandstream's enterprise-grade reliability, the GBX20 is the perfect choice for businesses looking to enhance their communication capabilities. Its modular design allows you to start with one module and expand as your business grows, ensuring a future-proof investment.

The Bottom Line: Supercharge your Grandstream phone with the GBX20 Extension Module. Whether you are managing a busy reception desk or a high-volume call center, this module gives you the tools you need to stay connected and productive.

Technical Specifications