| Yealink T73U | Yealink T73W | Yealink T74U | Yealink T74W | Yealink T77U | |
|---|---|---|---|---|---|
| Replaces the | T43U/T44U | T44W/T53 | T46U | T53W | T48U |
| Display | 2.8-Inch (320 x 240px) Colour LCD |
2.8-Inch (320 x 240px) Colour LCD |
4.3-Inch (480 x 272px) Colour LCD |
4.3-Inch (480 x 272px) Colour LCD |
7-Inch (800 x 480px) Colour Touchscreen |
| SIP Lines | 12 | 12 | 16 | 16 | 16 |
| Programmable Keys | 40 | 40 | 50 | 50 | 84 | Supports EXP55 | Yes, 3x Cascaded together | Yes, 3x Cascaded together | Yes, 3x Cascaded together | Yes, 3x Cascaded together | Yes, 3x Cascaded together |
| Wi-Fi 6 | No | Yes | No | Yes | Supported via WF50 |
| Bluetooth 5.0 | No | Yes | No | Yes | Supported via BT41 |
| Local Conference | 5-Way Conference | 5-Way Conference | 10-Way Conference | 10-Way Conference | 10-Way Conference |
| Gigabit Ethernet | Yes, Dual-Ports | Yes, Dual-Ports | Yes, Dual-Ports | Yes, Dual-Ports | Yes, Dual-Ports |
| USB Port | 1x USB 2.0 Interface | 1x USB 2.0 Interface | 1x USB 2.0 Interface | 1x USB 2.0 Interface | 2x USB 2.0 Interface |
