Yealink Device Comparison
CATEGORY
Product
![office phone,Wired phone,Corded Phone](https://www.yealink.com/website-service/attachment/product/image/20220413/202204130217126152817ec9f47ea84ae0e802f71726b.png)
SIP- T31
Dual-line entry level IP phone
![Yealink Wireless Touch-Sensitive Conference Phone](https://www.yealink.com/website-service/attachment/product/image/20220414/20220414093511993deef58fd40e4a56b3d6d63ef9367.png)
CP935W
CP935W
![](https://www.yealink.com/website-service/attachment/product/image/20240202/202402020944247578ae6a9344cff9f088a4ed3f725eb.png)
SIP-T44W
SIP-T44W
All Specifications
Appearance
Key Features and Benefits
Keywords
Stronger Performance, More Possibilities,Superior HD Audio, Better Communication,
Classic Design, Practical Details,All-in-One Platform, Convenient Management
Modest Design, Easy-to-Use User Interface,Built-in Battery, Wi-Fi and DECT to Minimize Deployment Costs,HD Audio, Smooth Communication,Rich Features and High Expandability
•Easy Customization and High Expansibility
•HD Audio
•Wireless Transmission
•Efficient Installation and Provisioning
•Secure Transport and Interoperability
Key Features
• Yealink HD Voice
• 2.3” 132x64-pixel graphical LCD with backlight
• Two-port 10/100M Ethernet Switch
• 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
4-inch multi-touch screen with 480x800 resolution
• Optimal HD audio, full duplex technology
• Yealink Noise Proof Technology
• Built-in rechargeable lithium battery
• Up to 15 hours talk time (in ideal conditions)
• Up to 75 hours standby time in Wi-Fi mode (in ideal conditions)
• 20-foot (6-meter) and 360° voice pickup
• Built-in 6-microphone array for voice pickup
• 5-way conference call
• Hybrid UC meeting
• Built-in Wi-Fi (2.4GHz/5GHz, 802.11a/b/g/n)
• Built-in Bluetooth 4.2
• 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/
n/ac)
• T4U Auto-P template unified
• T4U firmware unified
• Up to 12 SIP accounts
• PoE support
• USB headset and EHS support
• Supports color-screen expansion modules
• Stand with 2 adjustable angles
• Wall mountable
• Handset with hall switch
Overview
Content Sharing
-
-
√
Camera
-
-
-
Operating System
Linux Based
Linux
Interface
LCD Display
2.3” 132x64-pixel graphical LCD
4'' 480x800 capacitive touch screen
2.8” 320x240-pixel color LCD with backlight
LCD Type
Fixed
Fixed
Mi
LED Indicators
√
-
LED for call and message waiting indication
Line Keys
2
-
8 line keys with LED
Memory Keys
2
-
Expansion Module/Microphone (Accessory, purchased separately)
-
-
Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), Class 3
• 2 x USB port (2.0 compliant)
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port
Foot Stand
2 Adjustable Angles
-
Stand with 2 adjustable angles
Audio Features
HD Voice
HD handset, HD speaker
Optimal HD Audio
HD handset, HD speaker
Speakerphone
Full-duplex
Full-duplex
Full-duplex hands-free speakerphone with AEC
Wideband Codec
G.722, Opus
G.722,G722.1C,Opus
AMR-WB (optional), G.722
Narrowband Codec
G.711(A/µ), G.729, G.729A, G.726, iLBC, G.723.1
G.711(A/µ), G726, G729, G723, iLBC
AMR-NB (optional), PCMU
HAC Handset
-
-
Hearing aid compatible (HAC) handset
Acoustic Shield
-
Acoustics Fabric
√
Yealink Noise Proof
-
√
√
Video Features
Video Resolution
-
-
-
Video Codecs
-
-
-
Connectivity
USB Port (2.0 Compliant)
-
1
2 x USB port (2.0 compliant)
Ethernet Port
2 x RJ45 10/100M Ethernet ports
-
Ethernet Cable (2m CAT5E UTP Cable)
Handset Port (RJ-9)
√
-
1 x RJ9 (4P4C) handset port
Headset Port (RJ-9)
√
-
1 x RJ9 (4P4C) headset port
PoE
-
√
2.0W - 5.2W
Headset
EHS Wireless Headset
-
Bluetooth headsets
USB headset
Bluetooth
-
Built-in Bluetooth 4.2
USB/Bluetooth connectivity
Wi-Fi
-
Built-in Wi-Fi (2.4GHz/5GHz, 802.11a/b/g/n)
√
HDMI
-
-
-
Wall Mountable
√
-
√
Corded-Cordless Phone
-
-
-
Door Phone Integration
-
-
-
Telephony Features
SIP Accounts
2
1
Up to 12 SIP accounts
N-way Conferencing
Local 5-way Conferencing
5-way Conferencing
5-way conference call
![](https://www.yealink.com/website-service/attachment/product/image/20220523/2022052310362998192c2d3544547bef243b0cdf8e422.png)
![Appearance of SIP- T31 picture 1](https://www.yealink.com/website-service/attachment/product/image/20220523/2022052310362998192c2d3544547bef243b0cdf8e422.png)
![Appearance of SIP- T31 picture 2](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523103630598aee8cbb499c9728e3c40afb126e.png)
![Appearance of SIP- T31 picture 3](https://www.yealink.com/website-service/attachment/product/image/20220523/202205231036299898c4781424f87a5766bea513f19af.png)
![](https://www.yealink.com/website-service/attachment/product/image/20220524/20220524034754951acfff7d1418a965947cbb1f57350.png)
![Appearance of CP935W picture 1](https://www.yealink.com/website-service/attachment/product/image/20220524/20220524034754951acfff7d1418a965947cbb1f57350.png)
![Appearance of CP935W picture 2](https://www.yealink.com/website-service/attachment/product/image/20220524/20220524034754877c5ac1cc144d4a0f3fc0b8ed9e633.png)
![Appearance of CP935W picture 3](https://www.yealink.com/website-service/attachment/product/image/20220524/20220524034754868f83291264e25b0012fb6062194db.png)
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