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Yealink SIP-T77U VOIP Phone with 7-Inch Touchscreen for Executive Communication

Brand Yealink
Model Number SIP-T77U
Manufacture Warranty 1 Year
EpicRise Warranty First Year
Product Highlights

• 7-inch 800x480 color touchscreen with intuitive interface for fast navigation between calls and applications

• 16 SIP account support with 84 programmable DSS keys, expandable to 318 keys with up to three expansion modules

• Triple-ring security architecture with TEE hardware encryption, secure boot, and WPA3 support protects communications

• AI noise cancellation and Yealink Optima HD Voice deliver crystal-clear audio for professional business calls

• Dual Gigabit Ethernet with PoE, USB-A and USB-C ports, Wi-Fi and Bluetooth ready for flexible deployment

  • Overview
  • Specifications
  • FAQ
  • User Guides
  • Reviews

The Yealink SIP-T77U is a flagship-class IP phone designed for executives and business professionals who demand premium communication experiences. With its sleek design featuring a large 7-inch color touchscreen, dual USB ports, and advanced security features, the T77U delivers dynamic business communications with enterprise-grade reliability. The phone combines cutting-edge hardware with intelligent software to provide exceptional audio quality, extensive customization options, and seamless integration with modern UC platforms.

Built on Linux 6.1 with TEE hardware encryption and triple-ring security architecture, the SIP-T77U ensures complete protection from boot to runtime. The device supports up to 16 SIP accounts and 10-way conferencing, making it ideal for high-volume call environments. AI-powered noise cancellation and Yealink Optima HD Voice technology guarantee crystal-clear communications, while the intuitive touchscreen interface streamlines call management and application access for maximum productivity.

Best For

The Yealink SIP-T77U is engineered for demanding enterprise environments where communication quality and security are critical:

- Executive Offices: C-suite and senior management requiring premium desk phones with advanced features, large displays, and extensive line appearance capabilities for managing multiple accounts and departments

- Busy Reception Areas: Front desk operations needing 84+ programmable keys for rapid call routing, directory access, and presence monitoring across departments

- Contact Centers: Supervisor stations requiring multi-account support, call recording via USB, and advanced call handling features for quality monitoring and team management

- Financial Services: Banks and trading floors demanding triple-ring security architecture, encrypted communications, and hearing aid compatibility for regulatory compliance

- Healthcare Administration: Medical office managers coordinating multiple departments with secure SIP trunking, 10-way conferencing, and HIPAA-compliant communication features

Key Features

- 7-inch 800x480 pixel color touchscreen with backlight enables intuitive navigation and supports both light and dark themes for personalized user experience

- 16 VoIP account registration with 10-party conferencing capability handles complex call scenarios and multi-department management from a single device

- 84 programmable DSS keys expandable to 318 keys with three color-screen expansion modules provide one-touch access to contacts, lines, and functions

- Triple-ring security architecture featuring TEE hardware encryption, secure boot integrity verification, firmware encryption, 802.1X authentication, and WPA3 support

- AI noise cancellation technology and Yealink Optima HD Voice with wideband codecs (G.722, AMR-WB) deliver exceptional audio clarity in noisy environments

- Dual Gigabit Ethernet ports with PoE (IEEE 802.3af) support zero-touch deployment and simplified cabling in enterprise networks

- Dual USB ports (Type-A and Type-C) enable USB headset connection, call recording, and firmware updates with 5V/1A output for device charging

- Wi-Fi (via WF50) and Bluetooth (via BT41) ready for wireless headset pairing and flexible network connectivity without cable constraints

Quick Specs

Display 7-inch 800x480 color touchscreen with backlight
SIP Accounts 16 lines
DSS Keys 84 programmable keys (expandable to 318 with 3 expansion modules)
Audio Yealink Optima HD Voice, AI noise cancellation, 3W speaker, full-duplex speakerphone with AEC
Codecs Wideband: G.722, AMR-WB (optional) | Narrowband: G.711, G.729, G.723.1, G.726, iLBC, AMR-NB (optional)
Network Dual Gigabit Ethernet, PoE IEEE 802.3af, IPv6, VLAN (802.1p/Q), QoS, LLDP/CDP
Ports 2x RJ-45 Gigabit, 1x USB-A, 1x USB-C, 1x RJ9 handset, 1x RJ9 headset
Security TEE hardware encryption, secure boot, TLS 1.3, SRTP, HTTPS, AES256, 802.1X, WPA3, OpenVPN, L2TP VPN
Expansion Supports up to 3 color-screen expansion modules (sold separately)
Wireless Wi-Fi ready (via WF50 adapter), Bluetooth ready (via BT41 adapter)
Conferencing 10-party conference bridge
Headset RJ9, USB, Bluetooth, EHS support
Power PoE (IEEE 802.3af) 2.4-3.2W or AC adapter 5V/2A (sold separately)
Dimensions 266mm (W) × 226mm (D) × 85mm (H) × 54mm (Thick)
Color Classic Gray
Mounting Desktop with adjustable stand (2 angles) or wall-mountable (bracket sold separately)
Operating System Linux 6.1 with dual firmware images
Provisioning Auto-provisioning via FTP/TFTP/HTTP/HTTPS, PnP, Redirection, TR-069, Broadsoft DM

What's Included

- SIP-T77U IP phone unit

- Handset with curled cord

- Adjustable desktop stand

- Quick start guide

Product Details
Color Black
Connection Type Ethernet, USB, Wi-Fi, Bluetooth
Power Source AC-powered, DC-powered
What type of business environments is the Yealink SIP-T77U best suited for?
The SIP-T77U is designed for executive offices, busy reception desks, contact center supervisor stations, and any role requiring management of multiple phone lines and accounts. The 7-inch touchscreen and 84 programmable keys (expandable to 318) make it ideal for high-volume call handling and complex call routing scenarios. Organizations in finance, healthcare, and professional services benefit from its triple-ring security architecture and encrypted communications.
How does the SIP-T77U compare to other models in Yealink's T7X series?
The SIP-T77U is the flagship model in the T7X series with the largest 7-inch touchscreen compared to smaller displays on T73U and T74U models. It supports 16 SIP accounts versus fewer on lower models and offers 84 DSS keys expandable to 318 with three expansion modules. The T77U runs the unified T7X firmware and shares the same triple-ring security architecture and AI noise cancellation technology across the series.
Is the investment in the SIP-T77U justified compared to mid-range IP phones?
The SIP-T77U justifies its premium positioning through features unavailable in mid-range phones: 16 SIP account support, 7-inch touchscreen, 84 programmable DSS keys, triple-ring security with TEE hardware encryption, and AI noise cancellation. Organizations managing multiple departments from single devices, requiring advanced security compliance, or supporting executives with high call volumes will realize productivity gains that offset the higher initial cost. Businesses with simpler single-line needs may find mid-range models sufficient.
What VoIP platforms and headsets are compatible with the SIP-T77U?
The SIP-T77U supports standard SIP protocol (RFC 3261) and integrates with major platforms including Broadsoft, 3CX, Asterisk, and Microsoft Teams (with specific firmware). It connects with USB headsets via Type-A or Type-C ports, Bluetooth headsets via BT41 adapter, RJ9 wired headsets, and EHS-compatible wireless headsets. The phone supports Yealink expansion modules (EXP50/EXP43) and wireless adapters WF50 (Wi-Fi) and BT41 (Bluetooth) for flexible deployment.
Does the SIP-T77U support Power over Ethernet or does it require a separate power adapter?
The SIP-T77U supports PoE IEEE 802.3af standard and draws 2.4-3.2W from network switches with PoE capability. Organizations without PoE infrastructure can use an optional Yealink AC adapter (5V/2A, sold separately). PoE deployment simplifies installation by requiring only a single Ethernet cable for both network connectivity and power.
What security features does the SIP-T77U provide for protecting business communications?
The SIP-T77U implements triple-ring security architecture with TEE hardware encryption, secure boot integrity verification, and dual firmware images. Communications are protected with TLS 1.3, SRTP voice encryption, HTTPS certificate manager, and AES256 configuration file encryption. Network security includes 802.1X authentication, WPA3 wireless encryption, OpenVPN, and L2TP VPN support for secure remote deployment.
What expansion modules are compatible with the SIP-T77U and how many can be connected?
The SIP-T77U supports up to three Yealink color-screen expansion modules, increasing total programmable keys from 84 to 318. Compatible models include EXP55 (78 keys with 5.5-inch color LCD) for the T7X series. Each expansion module daisy-chains to the phone or previous module via a dedicated cable connection. Expansion modules are sold separately and require compatible firmware versions.
Can the SIP-T77U record calls and what storage options are available?
The SIP-T77U supports USB recording through its USB Type-A and Type-C ports. Users can connect USB flash drives to record calls directly on the device. Recording capabilities may require compatible PBX platform support and proper configuration. Specific recording format specifications and maximum storage capacity are not detailed in official documentation.
Is the SIP-T77U hearing aid compatible and does it meet accessibility standards?
The SIP-T77U handset is HAC (Hearing Aid Compatible) according to official specifications. The phone includes features like adjustable ringer volume, visual LED indicators for incoming calls and messages, and HD audio quality for clarity. Specific HAC rating levels (M/T ratings) and detailed accessibility certifications are not provided in available documentation.
Regular price
$235.00
Sale price
$235.00
Regular price
$235.00
Sale price
$235.00
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