HD Audio，Noise Cancellation，3.5mm Headset Jack，Belt Clip ,Quick charge，Bluetooth 5.1，Vibration alarm，OTA Upgrade

CommunicationsThe SIP-T44U IP phone is a feature-rich business tool for excellent communications and extended functionality. Integrated with Hall Switch, T44U gives you a quieter operation and environment. It is a 12-line IP phone that comes with a 2.8-inch color display with backlight and the EXP43 support.

• 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

• 2.8” 320x240-pixel color LCD with backlight• Dual USB ports• Dual firmware images• T4U Auto-P template unified• T4U firmware unified• Up to 12 SIP accounts• PoE support• USB headset and EHS support• Wi-Fi via WF40/WF50• Bluetooth via BT40/BT41/BT51• Supports color-screen expansion modules• Stand with 2 adjustable angles• Wall mountable• Handset with hall switch2.8-inch ScreenOptima HD VoiceDual USB PortsAcoustic ShieldUnified FirmwareGigabitExpansion Module

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.).