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
![color screen IP phone,work phone,Business Phone](https://www.yealink.com/website-service/attachment/product/image/20220412/2022041203363573837b4612a423e97ee448132add4a5.png)
SIP- T33G
SIP- T33G
![Yealink DECT IP Phone](https://www.yealink.com/website-service/attachment/product/image/20220627/2022062706272243368efe3954526bc525acb5e49fef6.png)
W78P
W78P
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
Stronger Performance, More Possibilities,Superior HD Audio, Better Communication,Classic Design, Practical Details,All in One Platform, Convenient Management
Twenty Simultaneous Calls,HD Audio ,TLS&SRTP Security Encryption,Backup System,Centralized Deployment,Quick Charge,Vibration Alarm,OTA Upgrade,Long Standby Time,bluetooth 5.1
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
• Yealink HD Voice
• 2.4” 320 x 240-pixel color display with backlight
• Dual-port Gigabit Ethernet
• PoE support
• Up to 4 SIP accounts
• Local 5-way conferencing
• Support EHS Wireless Headset
• Unified Firmware
• Support YDMP/YMCS
• Stand with 2 adjustable angles
• Wall mountable
High-performance SIP cordless phone system
2.4" 240 x 320 TFT color screen with intuitive user interface
Up to 20 simultaneous calls
Up to 10 DECT cordless handsets
Up to 10 SIP accounts
Flexible Noise Reduction (FNR)/Noise Cancellation
Up to 21-hour talking time (in ideal conditions)
Up to 166-hour standby time (in ideal conditions)
Quick charging: 10-minute charging time for 2-hour talking time
TLS and SRTP security encryption
Vibration alarm guarantees you do not miss any call, even in noisy situations
Wall mountable charger
Maximum DECT radio coverage: 50 meters indoors, 300 meters outdoors
Energy-saving ECO features
Overview
Content Sharing
-
-
Camera
-
-
Operating System
Linux Based
Linux Based
DECT technology: Yealink DECT technology focuses on high-quality Audio VoIP (wideband) and bit-rate data applications. However, we are incompatible with third-party DECT devices (base station, handset, etc.).
Interface
LCD Display
2.3” 132x64-pixel graphical LCD
2.4” 320 x 240-pixel color display
LCD Type
Fixed
Fixed
LED Indicators
√
√
Line Keys
2
4
Memory Keys
2
12 (4 pages of 3 keys)
Expansion Module/Microphone (Accessory, purchased separately)
-
-
Foot Stand
2 Adjustable Angles
2 Adjustable Angles
Audio Features
HD Voice
HD handset, HD speaker
HD handset, HD speaker
Speakerphone
Full-duplex
Full-duplex
Wideband Codec
G.722, Opus
G.722, Opus
Narrowband Codec
G.711(A/µ), G.729, G.729A, G.726, iLBC, G.723.1
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
2 x RJ45 10/100M Ethernet ports
Dual-port Gigabit Ethernet
Handset Port (RJ-9)
√
√
Headset Port (RJ-9)
√
√
PoE
-
√
Headset
EHS Wireless Headset
EHS Wireless Headset
Bluetooth
-
-
Wi-Fi
-
-
HDMI
-
-
Wall Mountable
√
√
Corded-Cordless Phone
-
-
Door Phone Integration
-
-
Telephony Features
SIP Accounts
2
4
N-way Conferencing
Local 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/20220523/20220523095400250c8ecc99f487fbb19a9a5f652b735.png)
![Appearance of SIP- T33G picture 1](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523095400250c8ecc99f487fbb19a9a5f652b735.png)
![Appearance of SIP- T33G picture 2](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523095400185a7ee863a43a69ce85f8605ae7c3b.png)
![Appearance of SIP- T33G picture 3](https://www.yealink.com/website-service/attachment/product/image/20220523/20220523095359883971c3ad547e2a9ba894a8d4bcecd.png)
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