
CurrentYealink T4 Series
Yealink SIP-T44W
Feature-rich Wi-Fi SIP Phone
- Brand
- Yealink
- Series
- T4 Series
- Model
- SIP-T44W
- Status
- Current
- Documents
- 36 manuals & files
- Knowledge base
- 306 articles
Overview
About the Yealink SIP-T44W
The new Yealink T4U series offers a modern and elegant appearance, along with improvements for greater interoperability and better collaboration.
Key features
- Easy Customization and High Expansibility
- Wireless Transmission
- Efficient Installation and Provisioning
- Secure Transport and Interoperability
- 2.8” 320x240-pixel color LCD with backlight
- Dual USB ports
- Dual firmware images
- Built-in Bluetooth 4.2
- Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/g/
- T4U Auto-P template unified
- T4U firmware unified
- Up to 12 SIP accounts
- USB headset and EHS support
- Supports color-screen expansion modules
- Stand with 2 adjustable angles
- Wall mountable
- Handset with hall switch
Specifications
SIP-T44W technical specifications
- HD voice: HD handset, HD speaker
- Hearing aid compatible (HAC) handset
- Acoustic Shield
- Smart Noise Filtering
- Wideband codec: AMR-WB (optional), G.722
- Narrowband codec: AMR-NB (optional), PCMU (G.711μ), PCMA (G.711A), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC
- DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
- Full-duplex hands-free speakerphone with AEC
- VAD, CNG, AEC, PLC, AJB, AGC
- 12 VoIP accounts
- One-touch speed dial, redial
- Call forward, call waiting, call transfer, call hold
- Call return, group listening
- Emergency call
- Mute, DND
- Auto answer
- Hoteline
- 5-way conference call
- Direct IP call without SIP proxy
- Ring tone selection/import/delete
- Set the date and time manually or automatically
- Dial Plan, XML Browser, Action URL/URI
- RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
- Built-in dual-band Wi-Fi:
- Network standard: IEEE802.11a/b/g/n/ac
- Transmission rate: Up to 433Mbps (dynamic)
- Frequency range: 2.4GHz/5.0GHz
- Built-in Bluetooth 4.2 for:
- Bluetooth headsets
- Contact synchronization
- Bluetooth call
- Simultaneous connection of one headset and one mobile phone
- Dual USB ports (2.0 compliant)
- USB call recording through a USB flash drive
- USB headset
- Expansion Module EXP43
- Wireless Headset Adapter EHS40
- USB/Bluetooth connectivity to Yealink CP900/CP700 speakerphone/wireless headset UH38, USB connectivity to Yealink wired headset UH34/UH36/UH37
- Basic functions: Answer/end, call mute
- Enhanced function: audio optimization, redial, call hold, volume synchronization, multiple calls control
- Enhanced DSS key
Gallery
SIP-T44W product photos








Documents
SIP-T44W manuals & downloads
Datasheets, user and admin guides, quick start guides and deployment files, downloaded directly from Yealink.
Datasheets
1Quick Start Guides
1Compatibility
6- PBX PartnerAug 24, 2026
- Headset CompatibilityJul 20, 2026
- Yealink IP Phone Features Integrated with BroadSoft UC-One User Guide V1.5PDFJun 15, 2026
- Yealink SIP Phones Integrated with Metaswitch Configuring Guide V1.5PDFDec 3, 2025
- Yealink SIP Phones Integrated with Metaswitch CommPortal Phone Applications User Guide V1.6PDFDec 3, 2025
- Yealink IP Phones Deployment Guide for BroadSoft UC-One Environment V1.6PDFDec 3, 2025
Deployment
3Technical Topics
16- Yealink SIP IP Phones XML Browser Developer's Guide V1.0PDFJun 15, 2026
- Using Security Certificates on Yealink IP Phones V1.4PDFMay 25, 2026
- Yealink Phonebook Generation Tool User GuidePDFApr 3, 2026
- Yealink Configuration Encryption Tool User Guide V1.2PDFApr 3, 2026
- Calling and Connected Line Identification Presentation on Yealink IP PhonesPDFApr 3, 2026
- LDAP Directory on Yealink IP PhonesPDFApr 3, 2026
Show 10 more technical topicsShow fewer
- Recovery Mode on Yealink IP Phones V86PDFApr 3, 2026
- Server Redundancy on Yealink IP PhonesPDFApr 3, 2026
- OpenVPN Feature on Yealink IP Phones V1.0PDFApr 3, 2026
- Using Ribbon Features on Yealink IP Phones V1.0PDFApr 3, 2026
- Using Enhanced DSS Keys on Yealink IP Phones V1.0PDFApr 3, 2026
- VLAN Feature on Yealink IP PhonesPDFApr 3, 2026
- Yealink 802.1X AuthenticationPDFApr 3, 2026
- Yealink Configuration Generator Tool User Guide V86PDFApr 3, 2026
- Yealink SIP IP Phones Configuration Guide for User Access LevelApr 3, 2026
- Yealink SIP Phones Language PacksApr 3, 2026
Firmware
SIP-T44W firmware & release notes
Newest first. Check your phone’s current version under Menu → Status before upgrading, and update one phone before a whole office.
- T42U,T43U,T46U,T48U,T44U,T44W 108.87.0.20 - Firmware & Release NoteLatestROMReleased Apr 8, 2026 Download
- T42U,T43U,T46U,T48U,T44U,T44W 108.87.0.20 - Firmware & Release NoteROMReleased Apr 8, 2026 Download
- T42U,T43U,T46U,T48U,T44U,T44W 108.87.0.20 - Firmware & Release NoteROMReleased Apr 8, 2026 Download
- T42U,T43U,T46U,T48U,T44U,T44W 108.87.0.20 - Firmware & Release NoteROMReleased Apr 8, 2026 Download
- T42U,T43U,T46U,T48U,T44U,T44W 108.87.0.20 - Firmware & Release NoteROMReleased Apr 8, 2026 Download
- T42U,T43U,T46U,T48U,T44U,T44W 108.87.0.20 - Firmware & Release NoteROMReleased Apr 8, 2026 Download
- T44W 108.87.0.15 - Firmware & Release NoteROMReleased Apr 8, 2026Withdrawn by Yealink
Knowledge base
SIP-T44W how-to articles
306 articles from Yealink’s knowledge base, grouped by topic. Articles open on support.yealink.com.
Call Features39
- Anonymous CallNov 3, 2025
- Anonymous Call RejectionNov 3, 2025
- Answer CallsMay 6, 2026
- Auto AnswerNov 3, 2025
- Auto RedialNov 3, 2025
Audio Features18
- Acoustic Clarity TechnologyNov 3, 2025
- Acoustic ShieldJul 20, 2026
- Alert ToneNov 3, 2025
- Audio CodecsJul 22, 2026
- Audio VolumeJan 8, 2026
Bluetooth17
- Activate Bluetooth ModeSep 14, 2026
- Bluetooth Device Discovery FeatureSep 14, 2026
- Configure Media Audio FeatureSep 14, 2026
- Configure Phone Audio FeatureSep 14, 2026
- Deactivate Bluetooth ModeSep 14, 2026
Customize Your Phone16
- AccessibilityJun 2, 2026
- Adjust Screen ContrastJun 2, 2026
- Adjust TransparencyJun 2, 2026
- Change Administrator PasswordJun 2, 2026
- Change Backlight & TimeJun 2, 2026
Directory and Call Log16
- Call LogNov 3, 2025
- CardDAV DirectoryDec 26, 2025
- Comparison of Different ContactsNov 3, 2025
- Directory List for DirectoryDir Soft KeyNov 3, 2025
- Directory Search SettingsNov 3, 2025
Auto Provisioning Guide14
- AppendixNov 3, 2025
- Configure a Provisioning ServerJul 2, 2026
- Download and Verify ConfigurationsJul 2, 2026
- Get StartedDec 27, 2025
- GlossaryJan 13, 2026
Network Configurations14
- 802.1x AuthenticationSep 15, 2026
- DHCP OptionSep 15, 2026
- DHCP Option for IPv6Dec 27, 2025
- How to access the web user interfaceSep 15, 2026
- Internet Port and PC PortSep 15, 2026
Advanced Features13
- Automatic Call Distribution (ACD)Nov 3, 2025
- Busy Lamp FieldDec 27, 2025
- Call CompletionNov 3, 2025
- Call Park and RetrieveDec 27, 2025
- Call PickupDec 27, 2025
Phone Customization13
- Analog HeadsetMar 5, 2026
- BluetoothDec 31, 2025
- DisplayJul 27, 2026
- DSS KeysJan 28, 2026
- Enhanced DSS KeysDec 27, 2025
Security Features13
- Auto Logout TimeNov 3, 2025
- Call Quality Statistic (QoE)Jun 3, 2026
- Emergency AlarmJan 6, 2026
- Encrypting and Decrypting FilesDec 27, 2025
- Incoming Network Signaling ValidationNov 3, 2025
System Applications for VP59, T58A, T58W, T88W (Pro), T88V Pro12
See all 12 articlesMore topics
Troubleshooting 10General Features 9Use CPW65 with CP965 9Use DECT Handsets with Phone 9Getting Started 8Audio Settings 7Directory 7Enter Characters 7Using DECT Handsets with Desk Phones 7Call History 6Maintain Phone 6Wireless Network 6Account Settings 5Use CP965 Star Connection Feature 3Optional Accessories with Phone 2CP960 & CP965 Star Connection 1Device Mode 1Firmware Upgrade 1Headset Settings 1Use CP960 & CP965 with PC 1Use a Phone with a PSTN Account 1
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Yealink and Yealink product names are trademarks of Yealink Network Technology Co., Ltd. Product information, images and documents are published by Yealink (source) and provided here for reference by smplVoice. Firmware and documents are Yealink’s original, unmodified files.









