Yealink SIP-T46U Productivity-enhancing SIP Phone
PRODUCT DESCRIPTION
Yealink SIP-T46U Productivity-enhancing SIP Phone (1301203) - 2 Years Local Warranty
Yealink SIP-T46U Productivity IP Phone for Professionals
The Yealink SIP-T46U is a 16-account SIP desk phone with a 4.3-inch 480x272 backlit colour display, built for executives and busy professionals. Yealink Optima HD Voice with a full-duplex AEC speakerphone, Smart Noise Filtering, Acoustic Shield and a hearing-aid-compatible handset keep every call crystal clear.
Built for Heavy Call Handling
Ten LED line keys programmable to 27 paperless DSS keys across 3 pages, intuitive colour menus and support for up to three EXP43 colour-screen expansion modules (180 extra buttons) make the T46U a natural fit for attendants and team leads. Dual-port Gigabit Ethernet with IEEE 802.3af PoE (Class 3) keeps deployment to one cable.
Expandable via Dual USB
Two USB 2.0 ports add Bluetooth (BT40/BT41/BT52), Wi-Fi (WF40/WF50), USB or DECT wireless headsets (WH62/WH63 Portable) and USB call recording, while unified T4U firmware, TR-069 and zero-touch provisioning simplify fleet management across Singapore offices.
Yealink SIP-T46U Datasheet — Technical Specifications
General
| Model | Yealink SIP-T46U |
| Part Number | 1301203 |
| Product Type | 16-account colour-screen SIP desk phone |
| Warranty | 2 Years Local Warranty (Singapore) |
Display & Keys
| Display | 4.3" colour display, 480 x 272 pixels, 16-bit colour, with backlight |
| SIP accounts | Up to 16 |
| Line keys | 10 line keys with LED |
| Programmable keys | Up to 27 paperless DSS keys (3-page view); paperless label design |
Audio
| HD voice | Yealink Optima HD Voice — HD handset, HD speaker; Smart Noise Filtering; Acoustic Shield |
| Speakerphone | Full-duplex hands-free speakerphone with AEC |
| Handset | Hearing aid compatible (HAC) |
| Wideband codecs | AMR-WB (optional), G.722 |
| Narrowband codecs | AMR-NB (optional), G.711 (A/µ), G.723.1, G.729/A/B/AB, G.726, iLBC |
| Headset | RJ9 (4P4C) port; EHS40 adapter support; USB headsets; Yealink WH62/WH63 Portable DECT headsets |
Connectivity
| Ethernet | Dual-port Gigabit Ethernet (2 x RJ45) |
| PoE | IEEE 802.3af, Class 3 |
| USB | 2 x USB 2.0 — Bluetooth dongle (BT40/BT41/BT52), Wi-Fi dongle (WF40/WF50), USB headset, USB call recording |
| Expansion module | EXP43 — up to 3 modules, up to 180 additional buttons |
| Security & network | VLAN (802.1p/Q), QoS (Layer 3 ToS DSCP), OpenVPN, L2TP VPN, IEEE 802.1X, IPv6 |
Power
| Power adapter | AC 100–240 V input, DC 5 V / 2 A output (optional) |
| Consumption | PSU: 1.2–3.0 W; PoE: 1.6–3.8 W |
Design & Features
| Dimensions (W x D x H x T) | 244 x 213 x 185 x 54 mm |
| Mounting | Desk stand with 2 adjustable angles; wall mountable (bracket optional) |
| Operating conditions | -10 to +45 °C; 5–90% humidity (non-condensing) |
| Phonebook | Local phonebook up to 1000 entries |
| Provisioning | Auto-provisioning (FTP/TFTP/HTTP/HTTPS), TR-069, zero-touch; unified T4U firmware, dual images |
Compatibility & Software Support
The SIP-T46U is an open-SIP business IP phone running Yealink’s unified T4U firmware. It registers with SIP-compatible IP-PBX and hosted voice platforms (Broadsoft device management is supported per the datasheet) — check compatibility with your PBX or hosted-voice provider, or ask the SourceIT team for advice on platforms commonly deployed in Singapore.
- Mass deployment: auto-provisioning via FTP / TFTP / HTTP / HTTPS, TR-069, zero-touch provisioning, dual firmware images
- Security: OpenVPN, L2TP VPN, IEEE 802.1X, SRTP
- Networking: dual-port Gigabit Ethernet, VLAN (802.1p/Q), Layer 3 ToS DSCP QoS, IPv6
- USB expandability: BT41 Bluetooth dongle, WF50 dual-band Wi-Fi dongle (also WF40), USB wired headsets and USB call recording to a flash drive, plus EXP43 expansion modules and Yealink WH62/WH63 Portable DECT headsets
- Headsets: RJ9 port plus EHS40 wireless headset adapter support
Package Contents & T4U Series Ordering Information
In the box:
- IP phone
- Handset with handset cord
- Ethernet cable (2 m CAT5E UTP)
- Stand
- Quick Start Guide
- Power adapter optional (Yealink PSU available separately) — PoE powered by default
- Wall mount bracket optional
The SIP-T46U sits near the top of Yealink’s T4U series. All T4-series models below are available from SourceIT:
| Model | Part No. — Key difference |
| Yealink SIP-T42U | 1301201 — 12 lines, 2.7" LCD, 15 DSS keys |
| Yealink SIP-T43U | 1301202 — 12 lines, 3.7" LCD, 21 DSS keys, EXP43 support |
| Yealink SIP-T44U | 1301214 — 12 lines, 2.8" colour LCD, 21 DSS keys, EXP43 support |
| Yealink SIP-T44W | 1301213 — 12 lines, 2.8" colour LCD, built-in Wi-Fi + Bluetooth 4.2 |
| Yealink SIP-T46U | 1301203 — 16 accounts, 4.3" colour LCD, 27 DSS keys, EXP43 support |
| Yealink SIP-T48U | 1301204 — 16 accounts, 7" touch screen, 29 one-touch DSS keys |
Datasheet & Downloads
Frequently Asked Questions — Yealink SIP-T46U
What is the difference between the Yealink T46U and T48U?
The T48U swaps physical line keys for a 7" touch screen with 29 on-screen DSS keys; the T46U keeps 10 physical LED line keys beside its 4.3" colour display. Both support 16 accounts, dual USB and EXP43 modules.
How many programmable keys does the T46U offer?
10 physical line keys programmable to 27 paperless DSS keys over 3 pages — and up to three EXP43 modules add up to 180 more buttons for attendant consoles.
Can I add Bluetooth or Wi-Fi to the T46U?
Yes — plug a BT41 Bluetooth dongle or WF50 Wi-Fi dongle (or WF40) into either USB 2.0 port.
Does the T46U come with a power adapter?
The adapter is optional — it runs on IEEE 802.3af PoE (Class 3, 1.6–3.8 W). For non-PoE desks, add the Yealink PSU for T46U/T48U.
Which wireless headsets pair with the T46U?
Yealink WH62/WH63 Portable DECT headsets are listed in the official datasheet, EHS wireless headsets connect via the EHS40 adapter, and Bluetooth headsets via the BT41 dongle.
Does the SIP-T46U come with a warranty in Singapore?
Yes. Every SIP-T46U sold by SourceIT comes with 2 years local Singapore warranty and a GST invoice.
