Yealink Device Comparison
CATEGORY
Product
W78H
Premium DECT Handset
SIP- T42U
SIP- T42U
CP935W-Base
CP935W-Base
All Specifications
Appearance
Key Features and Benefits
Keywords
HD Audio,Noise Cancellation,3.5mm Headset Jack,Belt Clip ,Quick charge,Bluetooth 5.1,Vibration alarm,OTA Upgrade
Easy Customization and High Expansibility--•HD Audio •Efficient Installation and Provisioning •Secure Transport and Interoperability
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
• New modern commercial design, more compact and easy to carry
• 2.4’’ 240 x 320 TFT color screen with intuitive user interface
• 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
• HD audio and noise cancellation
• Headset connection via Bluetooth or 3.5 mm jack
• Vibration alarm guarantees you not miss any call, even in noisy situations
• Sturdy and reliable belt clip to move freely
• Meet demands in either single-cell or multi-cell solutions
• 2.7" 192x64-pixel graphical LCD with backlight
• Dual USB ports
• Dual firmware images
• T4U Auto-P template unified
• T4U firmware unified
• Up to 12 SIP accounts
• PoE support
• Dual-port Gigabit Ethernet
• USB headset and EHS support
• Wi-Fi via WF40/WF50
• Bluetooth via BT40/BT41/BT52
• Stand with 2 adjustable angles
• Wall mountable
• Handset with hall switch
• 4-inch multi-touch screen with 480x800 resolution
• Optima HD voice, full duplex technology
• Yealink Noise Proof Technology
• Built-in Bluetooth 4.2
• Built-in Wi-Fi (2.4GHz/5GHz, 802.11a/b/g/n)
• Wi-Fi and DECT mode switchable (Switch via one-touch)
• Built-in battery
• Up to 15-hour talking time (in ideal conditions)
• Up to 167-hour standby time in DECT mode (in ideal conditions)
• 4-hour charging time
• 20-foot (6-meter) and 360-degree microphone pickup range
• Built-in 6-microphone array for voice pickup
• 5-way conference call
• Support to connect with a Bluetooth expansion microphone CPW25
• Hybrid UC meeting
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
2.7" 192x64-pixel graphical LCD
4'' 480x800 capacitive touch screen
LCD Type
Fixed
Fixed
LED Indicators
√
-
Line Keys
6
-
Memory Keys
15 (3 pages of 5 keys)
-
Expansion Module/Microphone (Accessory, purchased separately)
-
-
Foot Stand
2 Adjustable Angles
-
Audio Features
HD Voice
HD Speaker,HD Handse
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.729A/B, G.726,G.723.1, iLBC, Opus
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)
2
1
Ethernet Port
Dual-port Gigabit Ethernet
-
Handset Port (RJ-9)
√
-
Headset Port (RJ-9)
√
-
PoE
√
√
Headset
USB Headset
-
Bluetooth
√ (via BT40/BT41)
Built-in Bluetooth 4.2
Wi-Fi
√ (via WF40/WF50)
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
12
1
N-way Conferencing
5-way Conferencing
5-way Conferencing
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