SIP-T73U
Yealink SIP-T73U – Business IP Phone (Without PSU)
The Yealink SIP-T73U is a 12-line business SIP IP phone with a 2.8-inch color display, Gigabit Ethernet, PoE support, HD audio, and 5-way conferencing. This version comes without PSU, making it ideal for installations powered by PoE switches or an optional Yealink power adapter.
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Description
DESCRIPTION
The Yealink SIP-T73U is a professional business IP phone designed for users who need dependable VoIP calling, Gigabit connectivity, and modern desk-phone features for everyday office communication. It supports up to 12 SIP accounts and comes with a 2.8-inch backlit color display, making it suitable for office staff, reception desks, customer service teams, and general enterprise deployments.
The phone includes dual Gigabit Ethernet ports, PoE support, 5-way local conferencing, and a USB port for compatible accessories. Yealink also equips the T73U with HD voice, Smart Noise Filtering, and Acoustic Shield to improve call clarity and reduce background noise during conversations. For businesses that need additional line monitoring or shortcut keys, the T73U supports the Yealink EXP55 expansion module.
This version is supplied without PSU, so it is ideal for environments already using PoE-enabled network switches. If PoE is not available, Yealink specifies an optional 5V/2A power adapter. With its updated T7-series design, enhanced security features, and support for business call handling functions, the SIP-T73U is a practical desk phone for modern enterprise voice deployments.
| SPECIFICATION | DETAILS |
|---|---|
| Manufacturer | Yealink |
| Model | SIP-T73U |
| Product Type | SIP IP Phone |
| Power Supply | Without PSU / external power adapter not included |
| Power Options | PoE supported or optional 5V/2A Yealink power adapter |
| SIP Accounts | Up to 12 SIP accounts |
| Display | 2.8″ 320 × 240 color display with backlight |
| Ethernet Ports | Dual-port Gigabit Ethernet |
| USB Port | 1 × USB 2.0 |
| Audio Features | HD Voice, Smart Noise Filtering, Acoustic Shield, full-duplex speakerphone |
| Conference | 5-way local conference |
| Headset Support | RJ9 headset, EHS support, USB accessory support |
| Expansion Module Support | Supports Yealink EXP55 color-screen expansion module |
| Security | TLS 1.3, SRTP, AES256 config encryption, IEEE 802.1X, WPA2/WPA3, secure boot |
| PoE | Yes – IEEE 802.3af Class 2 |
| Stand | 2 adjustable angles |
| Wall Mount | Supported with optional wall mount bracket |
| Included PSU | No |
| Typical Use | Office telephony, reception desks, enterprise VoIP systems, shared office phones |
