Yealink Device Comparison
CATEGORY
Product

W90
DECT IP multi-cell system

SIP-T44W
SIP-T44W
All Specifications
Appearance
Key Features and Benefits
Introduction
No Perception Upgrade·Sync Level1 Base Backup·Headsets Registration · Seamless Stability·Easy Deployment··Wide Coverage··Full Scenarios··Multiple Phone Books
•Easy Customization and High Expansibility
•HD Audio
•Wireless Transmission
•Efficient Installation and Provisioning
•Secure Transport and Interoperability
Key Features
• Key Features and Benefits
• Support Air and LAN synchronization
• Seamless handover and roaming
• Up to 10 DM
• Up to 600 base stations
• Up to 2500 handsets
• Up to 2500 SIP accounts
• Up to 2500 parallel calls
• Support XML/LDAP/Remote Phonebook
• Support XSI Directory/XSI Call Log
• External antenna, DECT radio coverage up to 50 m indoors and 300 m outdoors
• Support IPv6
• Support PoE
• Support SRTP/SIPS/TLS, LDAP(s) and HTTPS
• Compatible with W57R/W59R/W56H/W53H/W73H/W78H, CP930W, CP935W and DD Phone
• DECT Technology: Yealink DECT technology focuses on high-quality Audio VoIP (wideband) and low bit-rate data applications. However, we are incompatible with third-party DECT devices (base station, handset, etc.).
• 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
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