The Yealink SIP-T77U is a high-end business IP phone specifically designed for efficient VoIP communication. One of its most notable features is the large 7-inch color touchscreen, boasting a resolution of 800 x 480 pixels, which supports up to 16 VoIP accounts. This design makes it an excellent choice for busy office environments where quick access is essential.

Featuring 84 one-touch DSS keys, users can quickly access various lines and functionalities, enhancing productivity tremendously. The device is equipped with dual Gigabit Ethernet ports (10/100/1000 Mbps) that support PoE (Power over Ethernet), adhering to 802.3af Class 3 standards, ensuring a reliable and efficient network connection.

• Display: 7-inch color touchscreen (800 x 480 px) with backlight
• VoIP Accounts: Up to 16 simultaneous registrations
• Line Keys: 84 programmable one-touch DSS keys
• USB Ports: 1x USB-A 2.0, 1x USB-C 2.0
• Operating System: Linux 6.1 with TEE hardware encryption

In addition, the SIP-T77U supports full-duplex speakerphone capabilities for hands-free operation, making it ideal for multi-tasking in professional settings. The device offers robust security features, including protected hardware encryption.

Among the accessories, an optional Wi-Fi dongle and Bluetooth functionality are available, while the basic unit does not come equipped with these features. This makes the SIP-T77U a versatile and powerful tool for modern businesses.