SIP-T46U IP Terminal
The Yealink SIP-T46U IP Phone serves as a robust communication tool for executives and professionals requiring high-density call management. This device features a 4.3-inch 480 x 272-pixel color display with a backlight for clear visual data presentation. The hardware architecture incorporates dual USB ports, allowing for simultaneous use of Bluetooth, Wi-Fi, and USB recording peripherals. It supports up to 16 SIP accounts and provides dual-port Gigabit Ethernet for high-speed network pass-through. Consequently, it maintains network efficiency even during peak traffic periods.
Key Features
- Optima HD Voice Technology
The system combines wideband hardware and software with Opus codec support for maximum acoustic clarity. - Dual USB Ports
Two integrated USB 2.0 ports support USB headsets, call recording to flash drives, and expansion modules. - Advanced Connectivity
- Dual-port Gigabit Ethernet for PC daisy-chaining
- Power over Ethernet (IEEE 802.3af) Class 3 support
- EHS support for wireless headset compatibility
- Expansion Capabilities
The interface supports up to three EXP43 color screen expansion modules for additional programmable keys.
Specifications
| Feature | Specification |
|---|---|
| Display | 4.3″ 480×272 Color Backlit LCD |
| SIP Accounts | 16 Accounts |
| Ethernet Ports | 2x 10/100/1000M (Gigabit) |
| USB Ports | 2x USB 2.0 |
| Audio Codecs | Opus, G.722, G.711, G.723.1, G.729AB, G.726, iLBC |
| PoE Support | Yes (IEEE 802.3af) |
| Wall Mountable | Yes |
What’s in the Box
- Yealink SIP-T46U Handset
- Handset cord and Stand
- Ethernet Cable (1.5m CAT5E)
- Quick Start Guide
Why Choose This SIP Device
- Unified firmware across the T4U series simplifies large-scale deployment and maintenance for IT departments.
- Acoustic Shield technology effectively filters background noise by creating a virtual shield around the speaker.
- The hardware supports multiple security protocols including TLS 1.2, AES encryption, and HTTPS provisioning.
- Dual USB functionality allows users to utilize a Wi-Fi dongle while simultaneously recording calls to a drive.
- Therefore, this model provides a scalable solution for organizations transitioning to high-bandwidth VoIP infrastructures.







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