Q What’s the difference between the Yealink SIP-T4S and Yealink SIP-T4U?
A. The entire Yealink SIP-T4U Series are equipped with faster responding Unified Firmware. They also feature Acoustic Shield and Smart Noise Filtering, increased local conferencing, increased Bluetooth connectivity and increased SIP Accounts. Specific details below:
| Upgrades on Specificaton | Main New Features | |
|---|---|---|
| T41S > T42U | New Stronger Chipset Gigabit port Dual USB Ports Removed EXT Port |
Acoustic Shield & Smart Noise Filter Rest API for Auo-Test Increased local Conference from 3-way to 5-Way Max Bluetooth connected bluetooth devices increased from 1 to 2 Increased SIP accounts from 6 to 12 |
| T42S > T43U | New Stronger Chipset Screen increased from 2.7" to 3.7" Increased line keys from 6 to 8 Supports EXP43 Module Removed EXT Port |
Acoustic Shield & Smart Noise Filter Rest API for Auo-Test Increased local Conference from 3-way to 5-Way Max Bluetooth connected bluetooth devices increased from 1 to 2 |
| T46S > T46U | New Stronger Chipset Dual USB Ports Removed EXT Port Supports EXP43 Module |
Acoustic Shield & Smart Noise Filter Rest API for Auo-Test Increased local Conference from 3-way to 10-Way Max Bluetooth connected bluetooth devices increased from 1 to 2 |
| T48S > T48U | New Stronger Chipset Dual USB Ports Removed EXT Port Supports EXP43 Module |
Acoustic Shield & Smart Noise Filter Rest API for Auo-Test Increased local Conference from 3-way to 10-Way Max Bluetooth connected bluetooth devices increased from 1 to 2 |
Q Do the Yealink SIP-T4U Series come with a Power Supply Unit?
A. No, they are PoE devices. The power supply unit can be purchased separately.
Q Which models feature Gigabit Ethernet?
A. All of the T4U Series have Gigabit Ethernet.
Q Can I use the Yealink EXP43 Expansion module with the Yealink T4U Series?
A. All models except the Yealink SIP-T42U.
Q What accessories are available for the Yealink SIP-T4U Series?
A. Yealink BT40/BT41 Bluetooth Adapter. Yealink WF40/WF50 Wi-Fi Adapter. Yealink EHS40 Wireless Headset Adapter
