# Grandstream GBX20 Extension module for GRP2615

## Grandstream GBX20 Extension module for GRP2615

The GBX20 is an Extension Module that adds functionality, versatility and flexibility to the GRP2615, GRP2624, GRP2650, GRP2670 carrier-grade IP phones as well as and GXV3350 and GXV3450 IP video phones. It features a 272x480 LCD display that offers up to 40 contacts per module with support for up to 160 contact s by using 4 modules. The GBX20 supports a wide-range of advanced call features including BLF, call park /pick-up, speed-dial, presence, intercom, voice conferencing transfer/forward and much more. An ideal solution for businesses and receptionists managing high call volumes, the GBX20 ensures maximum productivity by efficiently monitoring and dispatching incoming calls.

# Features

-   4.3 inch (272x480) TFT color LCD
-   20 per page (each module contains 2 pages, for up to 40 lines per module)
-   Combine up 4 daisy-chained modules for 160 contacts/extensions
-   BLF, call park /pick-up, speed-dial, presence, intercom, voice conferencing transfer/forward and more

## Details

- **Price:** 3119.0 ZAR
- **Vendor:** Grandstream
- **Type:** IP Phone Accessories
- **Tags:** First Distribution, Grandstream

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3119.00 ZAR | In stock |

## Images

- Grandstream GBX20 Extension module for GRP2615 - Guards On Duty Shop & Security Guards
- Grandstream GBX20 Extension module for GRP2615 - Guards On Duty Shop & Security Guards
- Grandstream GBX20 Extension module for GRP2615 - Guards On Duty Shop & Security Guards

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> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/grandstream-gbx20-extension-module-for-grp2615)
> Updated: 2026-05-21