Yealink Device Comparison
CATEGORY
Product
W78P
Premium DECT IP Phone System
SIP- T31G
SIP- T31G
CP935W
CP935W
All Specifications
Appearance
Key Features and Benefits
Keywords
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
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
Key Features
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
• 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
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
Overview
Content Sharing
-
-
Camera
-
-
Operating System
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.).
Linux Based
Linux
Interface
LCD Display
• 2.3” 132x64-pixel graphical LCD
4'' 480x800 capacitive touch screen
LCD Type
Fixed
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
Optimal HD Audio
Speakerphone
Full-duplex
Full-duplex
Wideband Codec
G.722, Opus
G.722,G722.1C,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
HAC Handset
-
-
Acoustic Shield
-
Acoustics Fabric
Yealink Noise Proof
-
√
Video Features
Video Resolution
-
-
Video Codecs
-
-
Connectivity
USB Port (2.0 Compliant)
-
1
Ethernet Port
Dual-port Gigabit Ethernet
-
Handset Port (RJ-9)
√
-
Headset Port (RJ-9)
√
-
PoE
√
√
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
N-way Conferencing
Local 5-way conferencing
5-way Conferencing
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