Yealink sip-t46u Ip Phone Hd Voice Dual Usb

Product Description

The YEALINK sip-t46u is a feature-rich SIP-based IP desk phone built for high-demand office environments and professional communications. It features a high-resolution TFT color display for clear on-screen information and runs Yealink Optima HD Voice technology with support for the wideband Opus codec, delivering clear, full-range audio on every call. The phone includes two USB ports that enable optional Bluetooth, Wi-Fi, USB headset, and USB call recording accessories. Full-duplex hands-free speakerphone with acoustic echo cancellation (AEC) ensures clean audio during conference calls. Licensed telecom technicians, IT professionals, and VoIP system integrators are the primary installers and administrators of this device.

The sip-t46u is suited for executive desks, front-office deployments, and high-call-volume professional workstations in both commercial and enterprise environments. It belongs to the Yealink T4U series, which shares the design language of the T4 line while adding improved interoperability and collaboration capabilities. The dual USB architecture makes it adaptable to a wide range of peripheral and connectivity needs without replacing core hardware. Any two USB-based accessories can be used simultaneously, providing deployment flexibility across different office setups.

Key Features

• High-resolution TFT color display for clear call and menu information
• Yealink Optima HD Voice with wideband Opus codec support for crystal-clear audio
• Dual USB ports supporting Bluetooth, Wi-Fi, USB headset, and USB recording simultaneously
• Full-duplex hands-free speakerphone with AEC for echo-free conference calls
• Hearing aid compatible (HAC) handset for accessibility compliance
• VAD, CNG, PLC, AJB, and AGC processing for consistent voice quality under variable network conditions

Compatibility

Designed as an OEM-style SIP desk phone for use with standard SIP-based PBX and hosted VoIP platforms. No specific compatible system models were provided in the product data.

Installation Notes

Installation and provisioning are typically performed by a VoIP or IT network technician familiar with SIP configuration and LAN infrastructure. Before servicing or replacing the unit, disconnect the network cable and any USB peripherals. Provisioning should follow the SIP server or hosted UCaaS platform requirements for extension registration, codec negotiation, and VLAN tagging. Do not connect USB accessories beyond the supported two simultaneous ports.

Technical Specifications

• Part Number: 1301203
• Display: High-resolution TFT color
• HD Voice: HD handset, HD speaker
• Handset: Hearing aid compatible (HAC)
• Supported Codecs: Opus, G.722, G.711 (A/u-law), G.723.1, G.729AB, G.726, iLBC, AMR-WB (optional), AMR-NB (optional)
• DTMF Modes: In-band, Out-of-band (RFC 2833), SIP INFO
• Speakerphone: Full-duplex with AEC
• Audio Processing: VAD, CNG, AEC, PLC, AJB, AGC
• USB Ports: 2 (supports Bluetooth, Wi-Fi, USB headset, USB recording)

Standard Information

• Brand: YEALINK
• Manufacturer Part Number: sip-t46u