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Yealink · T-series · workhorse

Yealink SIP-T46UThe phone people who live on the phone ask for.

A 4.3-inch color screen, 16 SIP accounts, dual USB ports for any headset or recording, and gigabit ethernet so big attachments don't choke the call. The T46U is the single most popular VoIP desk phone we ship — for good reason.

Display
4.3″ color TFT · 480×272
SIP accounts
16 lines
USB ports
2× USB 2.0 (front + back)
Ethernet
Dual gigabit · PoE class 3
Programmable keys
27 DSS × 4 pages = 108
Expansion
Up to 3× EXP43 / EXP50
$169 one-time
or rent for $11.99/mo — month-to-month, return anytime
Ships pre-configured · free next-business-day for orders $200+
✓ Auto-provisioned out of the box ✓ Warranty replacement included with rental ✓ Free EXP43 with annual prepay
Yealink SIP-T46U IP phone — front view with handset, 4.3-inch color display, and dialpad
Yealink SIP-T46U

Why the T46U is our workhorse pick.

The Yealink T46U replaced the T46S in 2020 with three meaningful upgrades: a second USB port (so you can run a headset and a recording device without an adapter), support for the newer EXP43 paper-label-free expansion modules, and a faster processor that makes the menus feel instant instead of laggy after a year of firmware bloat. Everything else — the 4.3-inch color screen, the 16 SIP accounts, the dual gigabit ports, the dependable Optoma HD-Voice handset — is exactly what made the T46S the standard mid-tier business phone for the previous five years.

It's the phone we recommend to anyone who'd otherwise be tempted by a touchscreen executive model. The T48U and T57W are nice, but most of our customers find that after a week, they're using line keys and the dialpad — the touchscreen becomes a fingerprint magnet they never actually tap. The T46U gives you the same screen real estate, the same color clarity, the same 16 BLF buddy keys, for $120 less and a sturdier feel under the hand.

Where it isn't the right phone: if you need built-in Wi-Fi (look at the T54W instead — same form factor, $30 more), if you're putting it on a CEO's desk and the optics matter (the T58W is the visible-luxury choice), or if you need a phone for a hot desk where someone's going to slam the handset back into the cradle twenty times a day (the T31P is half the price and just as indestructible).

For everyone else — sales floors, customer support, branch managers, the people who actually pick up the phone all day — the T46U is the phone we've shipped more of than any other model in our catalog, and the one that comes back with warranty claims the least.

Full technical specifications.

Display & user interface
Display4.3-inch 480×272 color TFT, adjustable brightness and contrast
Programmable keys27 paperless DSS keys spread across 4 on-screen pages (108 total)
Physical keys10 feature keys, 6 navigation keys, 12-key dialpad, hold / mute / transfer / message dedicated
LED indicatorsPer-line LED, MWI LED on handset cradle, ringer LED ring
Languages40+ on-screen languages including English, Spanish, French, German, Portuguese, Chinese
VoIP & SIP
SIP accountsUp to 16 simultaneous SIP accounts
SIP protocolsSIP v1 (RFC 2543), SIP v2 (RFC 3261), TLS / SRTP, NAT traversal (STUN), DNS-SRV, BLF / BLA, shared call appearance
CodecsOpus, G.722, G.711a/u, G.729AB, G.726, iLBC, AMR-WB (HD voice on handset, speaker, and headset)
DTMFIn-band, RFC 2833, SIP INFO
QoS802.1p/Q VLAN tagging, DiffServ ToS, LLDP-MED
Audio
SpeakerFull-duplex speakerphone with AEC, Acoustic Shield noise rejection
HD voiceHD handset, HD speaker, HD headset
Headset supportRJ9 wired headset jack, USB headset, EHS via EHS36 / EHS40 adapter (sold separately)
Connectivity
EthernetDual-port 10/100/1000 Mbps gigabit ethernet (LAN + PC pass-through)
PoEIEEE 802.3af, Class 3 (max 6.49 W)
USBTwo USB 2.0 host ports: one front, one back
Wi-FiOptional via Yealink WF50 (Wi-Fi 6) or WF40 (Wi-Fi 5) USB dongle, sold separately
BluetoothOptional via Yealink BT41 or BT42 USB dongle, sold separately
Power & expansion
Power sourcePoE (preferred) or DC 5V/2A power adapter (sold separately)
Power consumption1.6 W (idle), 3.5 W (active call, typical)
Expansion modulesUp to 3× EXP43 (LCD) or 3× EXP50 (color LCD) per phone — each adds 60 programmable keys
Physical & environmental
Dimensions280 × 213 × 188 mm (with stand)
WeightApproximately 1.21 kg
Wall-mountableYes, 75mm VESA pattern
Operating temperature0 to 40 °C (32 to 104 °F)
Storage temperature−10 to 60 °C (14 to 140 °F)
In the box (from voip.army)
IncludedT46U handset, base unit, curl cord, ethernet cable, stand, quick-start card, voip.army provisioning card with extension & SIP credentials pre-loaded
Not included (sold separately)Power adapter (PoE preferred), Wi-Fi or Bluetooth dongle, EHS adapter for wireless headsets, expansion modules

How it works on voip.army.

Every T46U we ship arrives pre-configured for your extension. If you're bringing your own, we onboard it in the same auto-provisioning flow as our shipped units. Either way, the user experience is "plug it in, wait a minute, take a call."

60s

Time from plug-in to first call

The phone boots, asks our provisioning server for its per-MAC config file, downloads SIP credentials and line key layout, reboots, registers. Typically about a minute on a decent internet connection.

16

SIP accounts you can run

The T46U supports up to 16 simultaneous registrations. Useful for shared inboxes, after-hours desks, or running a sales line and a personal line on the same handset.

108

Programmable keys without a sidecar

27 DSS keys × 4 pages, all reconfigurable from the voip.army portal. BLF, paging, park, transfer, custom URL — every key is yours.

0

Per-device onboarding fees

If you're bringing your own T46U, we don't charge to add it. Send the MAC, factory-reset, plug in, done.

3

EXP43/EXP50 modules per phone

Stack up to three expansion modules off a single T46U for 288 total programmable keys — receptionist-friendly for a 50+ person office.

2

USB ports for headset + recording

Front USB for your Jabra or Plantronics. Back USB for a recording dongle, Wi-Fi adapter, or Bluetooth adapter. You don't have to choose.

Ready to put a T46U on every desk?

Tell us how many you need and what extensions to map. We ship pre-configured next business day; you plug them in and they work.

✓ Free shipping on orders $200+ ✓ 30-day hardware return ✓ Free EXP43 with 12-month prepay