Detailed Specifications
Yealink EXP43 Color Expansion Module Sidecar
Overview
The Yealink EXP43 is a color LCD expansion module (sidecar) designed to extend the functionality of Yealink T4U series IP phones including T43U, T46U, and T48U.
It is deployed in high-call-volume environments such as reception desks, contact centers, and administrative switchboards, where rapid access to large numbers of contacts and call functions is required.
The module provides a 4.3-inch color display with programmable BLF/speed-dial keys, enabling up to 60 functions per module across multiple pages.
Up to three EXP43 modules can be daisy-chained for a total of 180 programmable keys, significantly expanding call handling capacity for enterprise telephony systems.
Not compatible with non-T4U Yealink phone series or standalone use without a host IP phone.
Key Features :
- 4.3-inch 272×480 color LCD display for visual call management
- 20 physical programmable keys with dual-color LED indicators
- Supports up to 60 functions via 3-page key layout
- Daisy-chain support up to 3 modules per phone system
- USB-based connection with host T4U series IP phones
Specifications :
| Parameter | Value |
|---|
| Brand | Yealink |
| Part Number | EXP43 |
| Product Type | Color Expansion Module (Sidecar) |
| Display | 4.3-inch TFT color LCD |
| Resolution | 272 × 480 pixels |
| Programmable Keys | 20 physical keys per page |
| Total Functions | Up to 60 per module (3 pages) |
| Maximum Expansion | Up to 3 modules (180 keys total) |
| Key Types | BLF, speed dial, call transfer, park, pickup |
| Indicators | Dual-color LED per key |
| Connectivity | USB to host IP phone |
| Compatible Phones | Yealink T43U / T46U / T48U |
| Power | Powered via host phone (USB bus powered) |
| Mounting | Desktop stand / wall-mount compatible |
| Use Case | Receptionist, call center, enterprise switchboard |
