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
Instant Global Deployment
Connect to cellular data anywhere across EMEA and APAC regions using local nano-SIM cards, avoiding landline delays.
Mission-Critical Failover
Safeguards voice accessibility by shifting telephone traffic automatically to 4G LTE if your primary broadband drops.
High-Speed Gigabit Passthrough
Dual Gigabit Ethernet ports allow co-locating a desktop PC with high-speed network access while powering the phone via PoE.
Unified Cloud Provisioning
Supports Yealink YMCS/YDMP cloud provisioning for remote firmware upgrades, batch configuration, and cellular signal monitoring.
Best for These Applications
Construction & Field Trailers
Remote project offices requiring immediate enterprise-grade voice extensions before fixed lines are installed.
Retail Outlets & Kiosks
Pop-up retail shops, mall kiosks, and seasonal branches where fixed broadband is unavailable or cost-prohibitive.
Critical Enterprise Desks
Executive desks, emergency dispatch centers, and IT operations rooms that require a reliable cellular backup voice link.
Distributed Remote Offices
Workspaces in rural or suburban commercial parks with unstable wired DSL or cable broadband connections.
Key Advantages
- Multi-Band Global Coverage:Compatible with global FDD/TDD LTE, 3G WCDMA, and 2G GSM frequencies for universal international carrier interoperability.
- Acoustic Shield Noise Isolation:Dual-microphone array blocks ambient office noise, ensuring pristine audio clarity even in busy, open commercial environments.
- Detachable External Antenna:Includes a high-gain external antenna with standard SMA connection to optimize reception inside shielded buildings.
- Integrated Wireless Versatility:Dual-band Wi-Fi links the phone to local networks without patch cords, while Bluetooth pairs with wireless business headsets.
Frequently Asked Questions
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Weight | 1.15 |
| Shipping Weight | 1.65 |
| Cellular Standard | 4G LTE (Cat 4), 3G WCDMA, 2G GSM |
| Cellular Bands | LTE-FDD: B1/B3/B5/B7/B8/B20/B28, LTE-TDD: B38/B40/B41, WCDMA: B1/B5/B8, GSM: 900/1800 MHz |
| 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 | 1 |
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