Description
The Yealink SIP-T77U is a premium touchscreen business IP phone designed for executives, reception desks, advanced office users, and organizations that need a more capable SIP desk phone for high-volume daily communication. It supports up to 16 SIP accounts and features a large 7-inch color touch screen, giving users a more modern, app-like interface compared with standard key-based IP phones.
The phone is built for performance and flexibility, with dual Gigabit Ethernet ports, PoE support, and both USB-A and USB-C ports for accessories such as USB headsets and compatible peripherals. Yealink also equips the T77U with HD Voice, AI Noise Cancellation, Optimized Acoustic Shield, and a 3W speaker to improve audio clarity and reduce surrounding office noise during calls and conferences.
As part of Yealink’s advanced T7 series, the SIP-T77U also includes enhanced security features such as TLS 1.3, SRTP, WPA3, 802.1X authentication, Trusted Execution Environment (TEE), secure boot, and firmware encryption. This version is supplied without PSU, making it ideal for environments already using PoE network switches. It is a strong fit for businesses looking for a flagship Yealink desk phone with a larger touch display, advanced call handling, and premium office telephony features.
| Specification | Details |
|---|---|
| Manufacturer | Yealink |
| Model | SIP-T77U |
| Product Type | SIP IP Phone |
| Power Supply | Without PSU / external power adapter not included |
| Power Options | PoE supported or optional external Yealink power adapter |
| SIP Accounts | Up to 16 SIP accounts |
| Display | 7″ 800 × 480 color touch screen with backlight |
| User Interface | Touch UI with soft keys, light/dark mode, accessibility mode |
| Ethernet Ports | Dual-port Gigabit Ethernet |
| USB Ports | 1 × USB-A 2.0 + 1 × USB-C 2.0 |
| Audio Features | Yealink HD Voice, AI Noise Cancellation, Optimized Acoustic Shield, 3W speaker, full-duplex speakerphone |
| Conference | 10-way local conference |
| Headset Support | RJ9 headset, EHS support, USB headset support |
| Expansion Module Support | Supports Yealink color-screen expansion modules |
| Security | TLS 1.3, SRTP, 802.1X, WPA3, Trusted Execution Environment (TEE), secure boot, firmware encryption |
| PoE | Yes |
| Stand | 2 adjustable angles |
| Wall Mount | Supported with optional wall mount bracket |
| Included PSU | No |
| Typical Use | Executive desks, office telephony, reception, enterprise VoIP systems, power users |
