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Grandstream

Grandstream GBX20 VoIP Extension Module 4.3 inch 272x480 LCD 40 lines

SKU CH-YAW9-59V56 MPN GBX20

Adds a 4.3 inch 272x480 colour LCD with 40 programmable lines to GRP2615 or GXV3350 phones, expandable to 160 lines with four modules

  • 40 lines per module on a 4.3 inch 272x480 colour LCD
  • Daisy-chain up to 4 modules for 160 monitored extensions
  • Works with GRP2615 and GXV3350 IP phones
  • Local GUI animations driven from the host phone
  • Advanced call features include BLF, park, speed-dial, presence, intercom, transfer and forward

Extension Module for GRP2615 and GXV3350

The Grandstream GBX20 adds a 4.3 inch 272x480 colour LCD to compatible IP phones. Each module shows 20 lines per page across two pages for up to 40 lines. Daisy-chaining four modules expands capacity to 160 lines for high-volume environments.

Compatibility check before ordering

This module works only with the GRP2615 Carrier-Grade IP Phone and the GXV3350 IP Video Phone. Verify that your desk phone is one of those two models. The host phone drives the local GUI and animation, so no separate power supply or network drop is required for the module itself.

Replaces paper directories and soft-key scrolling

Receptionists and staff who currently rely on printed contact sheets or layered soft-key menus gain one-touch BLF, call park, speed-dial and presence monitoring. The jump is worth it when daily call volume exceeds the native line keys and faster dispatch cuts handling time.

Highlights

  • 40 lines per module on a 4.3 inch 272x480 colour LCD
  • Daisy-chain up to 4 modules for 160 monitored extensions
  • Works with GRP2615 and GXV3350 IP phones
  • Local GUI animations driven from the host phone
  • Advanced call features include BLF, park, speed-dial, presence, intercom, transfer and forward

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box with the GBX20, and do I need to buy a phone separately?

The module ships alone; you must already own a compatible GRP2615 or GXV3350 IP phone to use it.

Should I choose one module or add more to reach 40 or 160 lines?

Each module provides 2 pages of 20 lines for 40 lines total; daisy-chain up to four modules for 160 lines.

What does the 272x480 4.3-inch LCD mean for daily use on a GRP2615?

The colour TFT screen shows 20 lines per page with animated local GUI driven by the host phone for BLF, call park, speed-dial and presence monitoring.

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