Yealink SIP-T73U Gigabit Business IP Desk Phone

The Yealink SIP-T73U Gigabit Business IP Desk Phone is a professional-grade communication solution designed for executives, managers, administrative staff, and business users who require reliable performance, enterprise security, and exceptional voice quality. Built on a secure Linux-based platform, the SIP-T73U combines modern productivity features with a streamlined wired design, making it an excellent choice for organizations that prioritize network stability, security, and high-quality communications.

Featuring a 3.7-inch adjustable color LCD display with a resolution of 360 x 160 pixels, the SIP-T73U delivers a clear and intuitive user experience. The adjustable screen allows users to customize viewing angles for improved comfort while providing easy access to contacts, call information, directories, and programmable keys.

The SIP-T73U supports up to 12 SIP accounts and includes 12 programmable DSS keys across multiple pages, making it ideal for users who manage multiple lines, extensions, or departments. Dual Gigabit Ethernet ports with Power over Ethernet (PoE) support provide reliable network connectivity while simplifying deployment and reducing cable requirements.

Advanced audio technologies including Yealink Acoustic Shield and Smart Noise Filtering help eliminate background distractions and improve voice clarity during calls. These intelligent audio enhancements ensure professional conversations even in busy office environments.

Built with enterprise security in mind, the SIP-T73U features a Trusted Execution Environment (TEE), Secure Boot, firmware encryption, and TLS 1.3 support to help protect communications and meet modern corporate security requirements.

Two USB-A ports provide flexible connectivity for USB headsets, call recording devices, and optional Bluetooth or Wi-Fi adapters, allowing businesses to expand functionality when needed. Its wired-first architecture makes the SIP-T73U particularly well suited for financial institutions, healthcare organizations, government offices, and other security-focused environments.

Features

3.7-inch adjustable color LCD display
360 x 160 resolution
Adjustable viewing angle
Supports up to 12 SIP accounts
12 programmable DSS keys across 3 pages
Yealink Acoustic Shield technology
Smart Noise Filtering
Trusted Execution Environment (TEE)
Secure Boot and firmware encryption
TLS 1.3 security support
Dual USB-A ports
USB headset support
USB call recording support
Optional Bluetooth connectivity via USB adapter
Optional Wi-Fi connectivity via USB adapter
Dual-port Gigabit Ethernet
Power over Ethernet (PoE) support
Linux-based operating system
Includes 1-Year Warranty

Specifications

Phone Type:
- Gigabit Business IP Desk Phone
Operating System:
- Linux-Based Platform
Display:
- 3.7″ Adjustable Color LCD
- 360 x 160 Resolution
Accounts:
- Up to 12 SIP Accounts
Programmable Keys:
- 12 DSS Keys
- 3 Pages
Audio:
- Yealink Acoustic Shield
- Smart Noise Filtering
- HD Voice Technology
Network:
- Dual-Port Gigabit Ethernet
USB:
- 2 x USB-A Ports
- USB Headset Support
- USB Call Recording
Security:
- Trusted Execution Environment (TEE)
- Secure Boot
- Firmware Encryption
- TLS 1.3 Support
Power:
- IEEE 802.3af Power over Ethernet (PoE)

Compatibility

Compatible with SIP-based hosted VoIP services and SIP-compatible IP PBX systems.

Optional accessories include:

USB Headsets
Bluetooth USB Adapters
Wi-Fi USB Adapters
USB Flash Drives for Call Recording

Please verify compatibility with your hosted service provider or phone system before deployment.

Upgrade Options

For users requiring a larger display or additional programmable keys, consider:

Yealink SIP-T74U Gigabit Business IP Phone
Yealink SIP-T77U Gigabit Business IP Phone

For built-in wireless connectivity, consider:

Yealink SIP-T73W Gigabit Business IP Phone

Ideal Applications

Executives
Managers
Administrative Professionals
Government Offices
Financial Institutions
Healthcare Organizations
Enterprise Offices
Security-Focused Environments

Includes