Yealink Network Technology Co., Ltd YEA-SIP-T77U 12-Line 7 inch Color Touch Screen Telephone

Executive IP Phone

The Yealink SIP-T77U is a 12-line desk phone built for professionals who manage multiple simultaneous calls. A 7-inch 800 by 480-pixel colour touch screen provides direct access to up to 84 DSS keys across seven pages. Sixteen SIP accounts can be registered, and dual gigabit Ethernet ports keep the network connection local. PoE support simplifies cabling when a switch provides power.

Teams and Individuals

This phone suits offices that need a shared device for hot-desking or executives who handle heavy call volumes with visual line management. The Linux 6.1 base and TEE hardware encryption meet strict security policies, while Bluetooth via the 8T41 dongle and Wi-Fi via the WF50 adapter add wireless flexibility. Buyers who require a dedicated hardware conference bridge or more than 16 concurrent registrations should look at a different platform.

Capacity and Headroom

Dual USB 2.0 ports (USB-A and USB-C) support headsets, EHS adapters and local call recording to a flash drive. The 26-button EXP55 expansion module adds a second colour screen for attendants who monitor dozens of extensions. Three-watt speaker output and Acoustic Shield technology keep conversations clear in open-plan areas. Without the optional PS5V2000US power supply the unit relies entirely on PoE, so sites without PoE infrastructure must budget for the separate adapter.