Grandstream GBX20 Expansion Module

Expansion module with LCD screen, 20 dual colour keys and designed for Grandstream GXV3350

Key features
  • 4.3" colour LCD screen
  • 40 lines per module 
  • Combine up to 4 extension modules
  • Call transfer 
  • Call forwarding 
  • Call waiting 
£153.59 Incl. VAT
Delivery date with Express Shipping: 25/04/2024 If order placed before 12PM
2 years of manufacturer warranty Subject to manufacturer conditions
Pay in 3 interest-free payments of See more
Bulk orders, request a quote now!
Internal ref: GRANDGBX20
Manufacturer part #: GBX20
Contact our experts Monday to Friday, 8.30am-5.30pm
Call us Now
Live Chat

Product description

Expansion module designed for Grandstream GXV3350

The Grandstream GBX20Expansion Module is a 20-button expansion module, perfect for the Grandsteam GVX3350 and GRP2615. It provides excellent versatility and flexibility. What's more, it comes with a 4.3" LCD colour touch screen, 20 retro light-up keys and storage for up to 40 contacts. As a result, use this module to organise and manage call transfers for your business.


  • 4.3" LCD colour screen
  • 20 contacts per page (2 in every expansion module)
  • Combine up to 4 modules
  • Call waiting
  • Speed dial
  • Call transfer and call forwarding

In the box

  • GBX20 expansion module
  • Support stand 
  • Module connection plate 
  • Screws 
  • USB cable 
  • Quick start guide 
  • Power supply 



Product Specs.

More Information
Manufacturer part #GBX20
Warranty2 years

Frequently Asked Questions

Currently there are no questions for this product.

Customer questions & answers