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
![Business Phone System,IP phone system,business desk phone](https://www.yealink.com/website-service/attachment/product/image/20220413/202204130217126152817ec9f47ea84ae0e802f71726b.png)
SIP- T31P
SIP- T31P
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
Stronger Performance, More Possibilities,Superior HD Audio, Better Communication,Classic Design, Practical Details,All in One Platform, Convenient Management
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
• Yealink HD Voice
• 2.3” 132x64-pixel graphical LCD with backlight
• Two-port 10/100M Ethernet Switch
• 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
Linux
Linux Based
Interface
LCD Display
2.3” 132x64-pixel graphical LCD
4'' 480x800 capacitive touch screen
2.3” 132x64-pixel graphical LCD
LCD Type
Fixed
Fixed
Fixed
LED Indicators
√
-
√
Line Keys
2
-
2
Memory Keys
2
-
2
Expansion Module/Microphone (Accessory, purchased separately)
-
-
-
Foot Stand
2 Adjustable Angles
-
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
Wideband Codec
G.722, Opus
G.722,G722.1C,Opus
G.722, Opus
Narrowband Codec
G.711(A/µ), G.729, G.729A, G.726, iLBC, G.723.1
G.711(A/µ), G726, G729, G723, iLBC
G.711(A/µ), G.729, G.729A, G.726, iLBC, G.723.1
HAC Handset
-
-
-
Acoustic Shield
-
Acoustics Fabric
-
Yealink Noise Proof
-
√
-
Video Features
Video Resolution
-
-
-
Video Codecs
-
-
Connectivity
USB Port (2.0 Compliant)
-
1
-
Ethernet Port
2 x RJ45 10/100M Ethernet ports
-
2 x RJ45 10/100M Ethernet ports
Handset Port (RJ-9)
√
-
√
Headset Port (RJ-9)
√
-
√
PoE
-
√
√
Headset
EHS Wireless Headset
-
EHS Wireless Headset
Bluetooth
-
Built-in Bluetooth 4.2
-
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
2
N-way Conferencing
Local 5-way Conferencing
5-way Conferencing
Local 5-way Conferencing
![](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)
![](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523103136768a99e93044945bbbecf9e7e33b3e8.png)
![Appearance of SIP- T31P picture 1](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523103136768a99e93044945bbbecf9e7e33b3e8.png)
![Appearance of SIP- T31P picture 2](https://www.yealink.com/website-service/attachment/product/image/20220523/202205231031367575a8c410f4fce94a81d35b1cf5fdb.png)
![Appearance of SIP- T31P picture 3](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523103136527794cc4c840469e8d211f4e55d254.png)
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