Yealink Device Comparison
CATEGORY
Product
W70B
High-Performance IP Base Station For Small-Medium Businesses
CP935W
CP935W
SIP-T44W
SIP-T44W
All Specifications
Appearance
Key Features and Benefits
Keywords
Ten Handsets
Twenty Simultaneous Calls
No Perception
Upgrade
LS & SRTP Security Encryption
Backup System
Centralized Deployment
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
• Up to 20 simultaneous calls
• Up to 10 DECT cordless handsets or DECT headsets
• Up to 10 SIP accounts
• Noise Reduction System
• TLS and SRTP security encryption
• No Perception Upgrade
• Support Push-to-Tal
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
Interface
LCD Display
4'' 480x800 capacitive touch screen
2.8” 320x240-pixel color LCD with backlight
LCD Type
Fixed
Mi
LED Indicators
-
LED for call and message waiting indication
Line Keys
-
8 line keys with LED
Memory Keys
-
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
-
Stand with 2 adjustable angles
Audio Features
HD Voice
Optimal HD Audio
HD handset, HD speaker
Speakerphone
Full-duplex
Full-duplex hands-free speakerphone with AEC
Wideband Codec
G.722,G722.1C,Opus
AMR-WB (optional), G.722
Narrowband Codec
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
-
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
-
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
1
Up to 12 SIP accounts
N-way Conferencing
5-way Conferencing
5-way conference call
Finance
Education
Healthcare
Manufacturing
By Industry
Future Workers
Personal Collaboration
Desktop Video
By Scenario
3CX
Extron
Broadsoft
Metaswitch
For Strategic Partners
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