The Yealink SIP-T44U is a feature-rich enterprise VoIP desk phone designed for professional office communication, call-heavy environments, and modern unified communication systems.

It sits in the T4U series, offering upgraded performance, dual USB ports, HD audio, Gigabit networking, and flexible wireless expansion, making it ideal for growing businesses and corporate deployments.

Key Features

2.8-inch color LCD display (320 × 240 resolution)

Supports up to 12 SIP accounts

HD Voice with Acoustic Shield noise reduction

Full-duplex speakerphone with echo cancellation

Dual Gigabit Ethernet ports (10/100/1000 Mbps)

Power over Ethernet (PoE support)

Dual USB ports for expansion (headsets, recording, Wi-Fi, Bluetooth dongles)

Optional Wi-Fi support via WF40/WF50 dongles

Bluetooth support via USB BT adapters

Up to 21 programmable DSS keys (3-page layout)

Support for EXP43 color expansion module

5-way conferencing support

Hearing aid compatible handset

Secure SIP communication (TLS/SRTP support)