Yealink Device Comparison
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Product
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DECT Headset + W70B/W90
DECT Headset Retail Solution
![](https://www.yealink.com/website-service/attachment/product/image/20240202/20240202094434900780d656f4e82b89c769dea96f25d.png)
SIP-T44U
SIP-T44U
![IP phone,office Phone,business desk phone](https://www.yealink.com/website-service/attachment/product/image/20230307/2023030712031932204796b344946b496f3e13a79cfc1.png)
SIP- T31G
SIP- T31G
All Specifications
Appearance
Key Features and Benefits
Keywords
Push-to-Talk Available in Two Different
ModesBe Heard Crystal Clearly
CommunicationsThe SIP-T44U IP phone is a feature-rich business tool for excellent communications and extended functionality. Integrated with Hall Switch, T44U gives you a quieter operation and environment. It is a 12-line IP phone that comes with a 2.8-inch color display with backlight and the EXP43 support.
Stronger Performance, More Possibilities,Superior HD Audio, Better Communication,Classic Design, Practical Details,All in One Platform, Convenient Management
Key Features
·Yealink Acoustic Shield Technology
·Talking time up to 10 hours
·Support W70B/W80MC/W90MC DECT system
·Support Push-to-Talk (only for W70B)
Redial or SpeedDial
·Wireless range: up to 50 meters indoors, and 300 meters outdoors (in ideal conditions)
• 2.8” 320x240-pixel color LCD with backlight• Dual USB ports• Dual firmware images• T4U Auto-P template unified• T4U firmware unified• Up to 12 SIP accounts• PoE support• USB headset and EHS support• Wi-Fi via WF40/WF50• Bluetooth via BT40/BT41/BT51• Supports color-screen expansion modules• Stand with 2 adjustable angles• Wall mountable• Handset with hall switch2.8-inch ScreenOptima HD VoiceDual USB PortsAcoustic ShieldUnified FirmwareGigabitExpansion Module
• Yealink HD Voice
• 2.3” 132x64-pixel graphical LCD with backlight
• Dual-port Gigabit Ethernet
• PoE support
• Up to 2 SIP accounts
• Local 5-way conferencing
• Support EHS Wireless Headset
• Unified Firmware
• Support YDMP/YMCS
• Stand with 2 adjustable angles
• Wall mountable
Overview
Content Sharing
-
Camera
-
Operating System
Linux Based
Interface
LCD Display
• 2.3” 132x64-pixel graphical LCD
LCD Type
Fixed
LED Indicators
√
Line Keys
2
Memory Keys
2
Expansion Module/Microphone (Accessory, purchased separately)
-
Foot Stand
2 Adjustable Angles
Audio Features
HD Voice
HD handset, HD speaker
Speakerphone
Full-duplex
Wideband Codec
G.722, Opus
Narrowband Codec
G.711(A/µ), G.729, G.729A, G.726, iLBC, G.723.1
HAC Handset
-
Acoustic Shield
-
Yealink Noise Proof
-
Video Features
Video Resolution
-
Video Codecs
-
Connectivity
USB Port (2.0 Compliant)
-
Ethernet Port
Dual-port Gigabit Ethernet
Handset Port (RJ-9)
√
Headset Port (RJ-9)
√
PoE
√
Headset
EHS Wireless Headset
Bluetooth
-
Wi-Fi
-
HDMI
-
Wall Mountable
√
Corded-Cordless Phone
-
Door Phone Integration
-
Telephony Features
SIP Accounts
2
N-way Conferencing
Local 5-way conferencing
![](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523102150482e662a45743e4bb423ca2f5baf037.png)
![Appearance of SIP- T31G picture 1](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523102150482e662a45743e4bb423ca2f5baf037.png)
![Appearance of SIP- T31G picture 2](https://www.yealink.com/website-service/attachment/product/image/20220523/202205231021504514c2142cb45c5a37c9104170a6bc2.png)
![Appearance of SIP- T31G picture 3](https://www.yealink.com/website-service/attachment/product/image/20220523/2022052310215039576a893754cdbac58efd1a6ce62ff.png)
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