Yealink T4 Series IP Phones, encompassing both the original T4x and the updated T4U models. These phones are designed to cater to various business needs, offering features ranging from basic functionality to advanced capabilities. �� Yealink T4 Series IP Phones – Model Overview Model Display Resolution SIP Accounts USB Ports Ethernet Wi-Fi / Bluetooth Expansion Module Support Notable Features T40P 2.3″ Graphical LCD 132×64 3 No 10/100 Mbps No No Entry-level IP phone with PoE support. T40G 2.3″ Graphical LCD 132×64 3 No Gigabit No No Similar to T40P with Gigabit Ethernet. T41P 2.7″ Graphical LCD 192×64 6 No 10/100 Mbps No Yes (EXP40) Enhanced audio quality with Optima HD Voice. T41S 2.7″ Graphical LCD 192×64 6 Yes Gigabit Optional via USB Yes (EXP40) Improved processor and USB port for expansion. T42G 2.7″ Graphical LCD 192×64 12 No Gigabit No Yes (EXP40) Supports up to 12 SIP accounts. T42S 2.7″ Graphical LCD 192×64 12 Yes Gigabit Optional via USB Yes (EXP40) Enhanced performance with USB expansion. T43U 3.7″ Graphical LCD 360×160 12 2 Gigabit Optional via USB Yes (EXP43) Dual USB ports for flexible connectivity. T44W 2.8″ Color LCD 320×240 12 2 Gigabit Built-in Wi-Fi & Bluetooth Yes (EXP43) Integrated wireless connectivity and HD audio. T46G 4.3″ Color LCD 480×272 16 No Gigabit No Yes (EXP40) High-resolution display for enhanced visuals. T46S 4.3″ Color LCD 480×272 16 Yes Gigabit Optional via USB Yes (EXP40) Improved hardware and USB support. T46U 4.3″ Color LCD 480×272 16 2 Gigabit Optional via USB Yes (EXP43) Dual USB ports and advanced audio features. T48G 7″ Touchscreen 800×480 16 No Gigabit No Yes (EXP40) Large touchscreen for intuitive navigation. T48S 7″ Touchscreen 800×480 16 Yes Gigabit Optional via USB Yes (EXP40) Enhanced processing power and USB expansion. T48U 7″ Touchscreen 800×480 16 2 Gigabit Optional via USB Yes (EXP43) Dual USB ports and advanced security features. �� Key Features Across the T4 Series HD Audio: All models support Yealink Optima HD Voice for clear audio communication. PoE Support: Power over Ethernet is standard across the series, simplifying installation. Expansion Modules: Select models support expansion modules like EXP40 and EXP43 for additional line keys. USB Ports: T4S and T4U models feature USB ports for accessories like headsets, Bluetooth, and Wi-Fi dongles. Gigabit Ethernet: Most models offer Gigabit Ethernet for high-speed connectivity. Wireless Connectivity: Models like T44W come with built-in Wi-Fi and Bluetooth for flexible deployment. For more detailed specifications and to explore the full range of Yealink T4 Series IP Phones, please visit the official Yealink website: �� Yealink T4 Series IP Phones
