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Yealink SIP-T44W-4G, 4G LTE & VoLTE, 2.8" (320x240) Color Screen, 12 SIP Accounts, Dual Gigabit PoE, Wi-Fi, Bluetooth.
The Yealink SIP-T44W-4G is an enterprise 4G LTE cellular IP phone featuring a 2.8-inch (320 x 240) color LCD display and support for up to 12 SIP accounts. It integrates LTE Cat 4 wireless connectivity with VoLTE support alongside dual Gigabit Ethernet ports with Power over Ethernet (PoE). Equipped with built-in dual-band 2.4G/5G Wi-Fi, Bluetooth 4.2, and Yealink Optima HD Audio with Acoustic Shield technology, the T44W-4G delivers flexible, high-fidelity communications without relying on fixed landline internet.
Product Overview
Engineered for businesses requiring dependable wireless agility and rapid deployment, the Yealink SIP-T44W-4G bridges the gap between traditional fixed-line telephony and mobile wireless data. By accepting a standard nano-SIM card, it enables immediate plug-and-play voice communication in locations lacking wired broadband infrastructure—including temporary work sites, pop-up stores, trailers, and mobile command centers. The phone also functions as an automated failover lifeline for high-priority office desks, instantly switching to cellular data if terrestrial wired internet goes down. Crafted with Yealink's renowned acoustic engineering, the T44W-4G features full-duplex hands-free operation and intelligent noise-canceling microphones to ensure crisp voice quality in bustling work environments. It is fully compatible with Yealink's Device Management Platform (YDMP/YMCS) for centralized mass provisioning, remote firmware updates, and real-time network diagnostics, drastically lowering IT administrative overhead across distributed fleets.
Why Buy This Product
Wire-Free Rapid Deployment
Instantly establish enterprise telephony in locations lacking wired broadband using standard nano-SIM cellular connectivity.
Intelligent Cellular Failover
Protects business continuity by routing calls automatically over 4G LTE if your wired terrestrial internet experiences downtime.
Gigabit Wireline Speed
Dual Gigabit Ethernet ports power the phone via PoE and supply high-speed data passthrough to a co-located PC.
Centralized Cloud Management
Fully compatible with Yealink YMCS/YDMP for zero-touch mass provisioning, remote firmware updates, and real-time cellular health tracking.
Best for These Applications
Temporary Sites & Pop-ups
Construction trailers, retail pop-up stores, seasonal kiosks, and field offices lacking wired internet.
Mission-Critical Desks
Executive workstations, security consoles, and dispatch desks requiring automatic cellular network redundancy.
Remote & Hybrid Executives
Dedicated corporate extension calling from home offices without touching personal home Wi-Fi routers.
Rural & Unwired Branches
Branch locations situated outside standard high-speed fiber or broadband terrestrial cable infrastructure.
Key Advantages
- Dual-Path Network Uplink:Seamlessly manages both wired broadband Ethernet and 4G LTE cellular data for resilient zero-downtime voice routing.
- Optima HD Acoustic Shield:Dual microphones isolate vocal frequencies while filtering out distracting office chatter and surrounding ambient noise.
- Carrier-Certified US Band Coverage:Engineered for North American LTE carriers with certified VoLTE support across B2, B4, B5, B12, B13, B14, B66, and B71.
- Integrated Wireless Connectivity:Built-in dual-band Wi-Fi and Bluetooth eliminate external dongles for wireless headsets and network links.
Frequently Asked Questions
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Weight | 1.15 |
| Shipping Weight | 1.65 |
| Cellular Standard | 4G LTE (Cat 4), 3G WCDMA |
| Cellular Bands | LTE-FDD: B2/B4/B5/B12/B13/B14/B66/B71, WCDMA: B2/B4/B5 |
| Sim Card Slot | 1 x Nano-SIM Card Slot |
| Antenna Type | High-Gain Detachable External LTE Antenna |
| Antenna Count | 1 |
| Cellular Data Speed | LTE Uplink up to 50 Mbps, Downlink up to 150 Mbps |
| Voice Over Lte | Yes |
| Sms Supported | Yes |
| Sip Lines | 16 |
| Sip Accounts | 16 |
| Display Type | 4.3-inch 480x272 Color Screen with Backlight |
| Display Resolution | 480 x 272 pixels |
| Screen Size | 4.3 inches |
| Ethernet Ports | 2 x 10/100/1000 Mbps Gigabit RJ45 Ports |
| Gigabit Ports | Yes |
| Network Speed | 10/100/1000 Mbps Gigabit |
| Poe | Yes |
| Bluetooth | Yes |
| Bluetooth Version | Bluetooth 4.2 |
| Wifi | Yes |
| Wifi Frequency | Dual-Band 2.4GHz & 5.0GHz |
| Usb Ports | 2 x USB 2.0 Type-A Ports |
| Hd Voice | Yes |
| Speakerphone | Full-Duplex Hands-Free Speakerphone with AEC |
| Headset Port | RJ9 Headset Port with EHS Support |
| Acoustic Shield | Yes |
| Smart Noise Filtering | Yes |
| Hearing Aid Compatible | Yes |
| Audio Conferencing | 10-way local audio conferencing |
| Phonebook Capacity | 1,000 Entries |
| Call History Records | 100 Records |
| Codec Support | Opus, G.722, PCMA, PCMU, G.729, G.729A, G.726, iLBC |
| Wall Mountable | Yes |
| Dimensions | 214 mm x 205 mm x 170 mm |
| Power Supply | PoE (IEEE 802.3af Class 3) or Optional External DC 5V/2A PSU |
| Stock | 2 |
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