Yealink SIP-T44W User Manual

The Yealink SIP-T44W is a high-performance 12-line SIP desk phone designed for business environments. It features a 4.3-inch color LCD with touch support, dual Gigabit Ethernet ports, PoE support, HD audio, built-in Bluetooth, Wi-Fi capability (with optional module), and support for up to 12 SIP accounts. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Advanced Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 4.3-inch color touch screen, Handset, Ethernet ports, Headset jack, USB port, Volume keys, Navigation keys.

Feature	Description
Display	4.3-inch TFT color LCD with touch support
Network Ports	Dual Gigabit Ethernet (LAN & PC)
Power	PoE (802.3af) or AC adapter
Audio	HD handset and speakerphone
Wireless	Built-in Bluetooth, optional Wi-Fi module
SIP Accounts	Up to 12 SIP accounts
USB Port	For future expansion
Headset Jack	For wired headset connection
Volume Keys	Adjust handset, speaker, ringer volume
Navigation Keys	For menu navigation and call handling

Installation

Unpack and inspect contents. Place on stable surface.

Connect to network: Use Ethernet cable to connect LAN port to switch/router.
Connect PC: Use second Ethernet cable from PC port to computer (optional).
Power the phone: Use PoE from switch or connect AC adapter to power jack.
Connect handset: Plug handset cord into handset port.

WARNING! Use only approved power adapter. Ensure cables are not pinched.

First-Time Setup

Power on phone; follow on-screen prompts.

Network configuration: Phone will attempt DHCP. Check IP address on screen.
Provisioning: Enter provisioning server URL or configure manually via web interface.
Account registration: Enter SIP server, username, password for each line.
Basic settings: Set time zone, language, ringtone via phone menu or web portal.

CAUTION! Keep phone away from heat sources and liquids.

Specifications

Display: 4.3-inch TFT color LCD, 480 x 272 pixels.
Network: Dual 10/100/1000 Mbps Ethernet, PoE 802.3af.
Protocols: SIP RFC3261, TCP/IP, UDP, RTP, RTCP, DNS, DHCP.
Audio Codecs: G.711, G.722, G.726, G.729, Opus.
Wireless: Bluetooth 4.2, optional Wi-Fi 802.11a/b/g/n.
Power Supply: 100-240V AC, 50/60Hz or PoE.
Operating Temp: 0°C to 40°C (32°F to 104°F).
Supported Features: Call hold, transfer, conference, forward, DND, BLF.

Controls and Settings

Access menu via touch screen or navigation keys. Front keys: MUTE, HEADSET, SPEAKERPHONE, NAVIGATION.

Touch Screen: Tap to dial, access contacts, call history, settings.

Basic Settings: Language, time, date, ringtone, volume. Network: Static/DHCP, VLAN, QoS. Account: SIP server, username, display name. Audio: Handset volume, speaker volume, microphone gain. Advanced: BLF keys, call features, security settings.

Connecting Devices

Network: LAN port to switch. PC: PC port to computer. Headset: Plug into headset jack.

Turn off phone before connecting devices (except network).
Match cables to ports (RJ45 to Ethernet, RJ9 to handset).
For Bluetooth headset: Enable Bluetooth in menu, pair device.

Tip: Use Cat5e or better Ethernet cables for Gigabit speeds.

Advanced Features

Supports advanced PBX features.

Call Transfer: During call, press TRANSFER, enter number, press TRANSFER again.
Conference: During call, press CONF, dial second party, press CONF to merge.
Call Forward: Menu > Features > Call Forward > enable and set number.
BLF (Busy Lamp Field): Monitor status of other extensions.
Park Call: Park call and retrieve from another phone.
Intercom: Configure for direct speaker communication.
Directory: Store up to 1000 contacts locally.
Call History: View missed, received, placed calls.

WARNING! Configure advanced features through administrator web interface.

Accessibility Features

High Contrast Mode: Enable in display settings. Ringer Volume: Adjustable up to 90dB. Headset Mode: For hands-free operation. Large Font: Option for easier reading.

Care & Cleaning

Unplug before cleaning. Use slightly damp cloth; no liquids or abrasives.

CAUTION! Do not spray liquids directly on phone; avoid cleaning agents.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. CE, RCM, UKCA marked. For support, visit www.yealink.com or contact your reseller. Copyright © Yealink Inc. All rights reserved.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power source/cable	Check PoE switch or AC adapter; ensure cable connected.
No network	Cable/DHCP	Check Ethernet cable; verify DHCP server; try static IP.
No registration	SIP credentials	Verify username, password, server address; check firewall.
No audio	Volume/codec	Adjust volume; check audio codec compatibility with server.
Touch screen not responding	Calibration	Restart phone; recalibrate touch screen in settings.

Reset: Press and hold OK key during boot for factory reset.

Service: Contact your VoIP provider or visit www.yealink.com/support