# YEALINK T43U – 12-Line / Monochrome Display / PoE, Gigabit Ethernet, Wi-Fi, Bluetooth – Executive IP Phone – 3CX

## **Crystal-clear calls, productivity, professional communication**

### The **YEALINK T43U** is a 12-line monochrome IP phone designed for executive-level communication and certified for 3CX platforms. It blends advanced features and flexible connectivity to optimize business productivity.

#### 📞 Call Handling

-   **Lines / SIP Accounts**: 12 lines with multiple SIP registrations for versatile call management
-   **Concurrent Calls**: Supports simultaneous inbound and outbound calls efficiently
-   **Call Features**: Hold, transfer, 3-way conference, BLF keys, and programmable paperless DSS keys for streamlined operation
-   **Directory**: Local phonebook, LDAP and corporate directory integration for quick access to contacts

#### 🖥️ Display & Interface

-   **Display**: 3.7-inch monochrome LCD, 360x160 px resolution for crisp call info display
-   **Backlit Keys**: Illuminated keypad and function keys for low-light usability
-   **Expansion Modules**: Supports up to three EXP43 sidecar modules with up to 180 additional programmable DSS keys

#### 🎙️ Audio Quality

-   **HD Voice**: Yealink Optima HD Voice with Opus wideband codec for superior audio clarity
-   **Speakerphone**: Full-duplex speakerphone ensuring hands-free clear communication
-   **Headset Port**: Dual USB ports and RJ9 connector supporting USB and wired headsets with EHS compatibility
-   **Noise Cancellation**: Built-in acoustic echo cancellation and noise filtering to enhance call quality

#### 🔌 Connectivity & Power

-   **Network**: Dual Gigabit Ethernet ports with PC passthrough for flexible deployment
-   **Power**: Power over Ethernet (802.3af/at) and optional external power supply supported
-   **Wi-Fi / Bluetooth**: Integrated Wi-Fi and Bluetooth 4.1 for wireless headsets and connectivity options
-   **USB**: Two USB 2.0 ports for headsets, Wi-Fi dongles, or call recording devices

#### ⚙️ Platform & Protocols

-   **Platform Certification**: Certified for 3CX business communication platform
-   **Supported Protocols**: SIP, SRTP, TLS, HTTPS provisioning ensuring security and interoperability
-   **Provisioning**: Zero-touch auto-provisioning with Yealink RPS and unified firmware for rapid deployment

#### 📦 What's in the Box

-   IP phone handset
-   Base unit
-   Handset cord
-   Ethernet cable
-   Stand
-   Power adapter (optional – PoE may be sufficient)
-   Quick setup guide

#### 🛡️ Warranty

Backed by a **1-year limited warranty**.

_Elevate your business communication with crystal-clear voice quality and intuitive call management._

## Details

- **Price:** 214.11 AUD
- **Vendor:** Yealink
- **Type:** Smartphones
- **Tags:** Auscomp, Bluechip, Dicker, IP Phones, Leader

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 214.11 AUD | In stock |

## Images

- YEALINK T43 3.7" 360x160 LCD | Wi-Fi | Bluetooth 4.1 | 2x Gigabit LAN | 2x USB | 12 VoIP | PoE (SIP-T43U)

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> Source: [TechForGood](https://techforgood.com.au/products/yealink-sip-t43u-ip-phone-grey-12-lines-lcd-wi-fi-sip-t43u)
> Updated: 2026-09-02