Grandstream Networks GBX20 Caller ID Grey

The Grandstream GBX20 is a high-performance expansion keyboard designed to enhance the functionality of compatible Grandstream IP phones. Featuring a vibrant 4.3-inch color LCD screen, it provides clear visual feedback for call handling and line status. Each module supports up to 40 programmable keys, and you can daisy-chain up to four modules for extensive scalability.

This expansion module streamlines call management with dedicated keys for transfer, call forwarding, and hold. Its sleek grey design complements Grandstream's professional phone lineup, making it ideal for receptionists, executives, and contact centers requiring efficient multi-line operations.