Should I buy T46S for a new deployment?

No — pick T46U instead for $20 more. Better USB, modern sidecar, longer support.

T46S vs T46G — what's the difference?

USB port and Opus codec. T46G has neither; T46S adds both. Otherwise identical.

Is the T46S discontinued?

End of life. Yealink still produces limited stock for replacement. Firmware support continues through 2027.

Will my Yealink wireless headset work via EHS?

Yes. EHS35/36 adapter (sold separately) connects to the back. Yealink WH62/WH66 work directly via USB without EHS.

Yealink · T4 series · 16-line color (S refresh)

Yealink T46SThe T46G with USB headset support.

Sixteen SIP accounts, a 4.3-inch color screen, dual gigabit ethernet with PoE, single USB port, EHS support, Opus codec. The T46S is the minor refresh of the T46G — added USB and Opus, otherwise identical. Legacy now, kept in the catalog for fleet matching.

Display

4.3″ color · 480×272

SIP accounts

16 lines

Programmable keys

10 line + multi-page

Ethernet

Dual gigabit · PoE class 1

Audio

HD voice · USB · EHS · Opus

Power

PoE or 5V/1.2A adapter

$169 one-time

or rent for $11.99/mo — month-to-month, return anytime

Ships pre-configured · free next-business-day for orders $200+

Order a T46S Rent for $11.99/mo Datasheet (PDF) ↓

✓ Auto-provisioned out of the box ✓ Warranty replacement included with rental ✓ Free shipping on orders $200+

Yealink T46S voip desk phone — front view with handset and display — Yealink T46S

Why the T46S is on the catalog.

The T46S is a transition-generation phone — Yealink's mid-2010s refresh of the popular T46G that added a USB port and Opus codec support. The same chassis, same screen, same 16-line SIP cap. About $10 more than the T46G. Functionally a small upgrade but a meaningful one for users who needed USB headsets.

Where it lives in the catalog now: fleet matching. The T46S was the volume seller from roughly 2017 to 2020 before the T46U arrived. Many medium-to-large businesses have 100+ T46S units in production; we stock them for failure replacement and matched expansions.

Why pick T46U over T46S for new deployments: the T46U adds the second USB port (a real upgrade — you can run a USB headset and a Wi-Fi dongle simultaneously), supports the modern EXP43 sidecar, and has a longer firmware support runway. $20 more. There is no compelling reason to buy a T46S for new desks today.

Full technical specifications.

Display & user interface
Display	4.3-inch 480×272 color TFT LCD
Line keys	10 multi-page line keys with dual-color LEDs
Soft keys	4 context-sensitive soft keys
VoIP & SIP
SIP accounts	Up to 16 SIP accounts
Protocols	SIP v2, TLS, SRTP, BLF/BLA
Codecs	Opus, G.722, G.711, G.723.1, G.729AB, G.726, iLBC
Provisioning	FTP/TFTP/HTTP/HTTPS, PnP, TR-069, RPS
Audio
HD voice	HD handset and HD speakerphone
Speaker	Full-duplex with AEC
Headset	RJ9 + USB + EHS
Connectivity
Ethernet	Dual 10/100/1000 Mbps gigabit
PoE	IEEE 802.3af Class 1
USB	1 × USB 2.0
Expansion	EXP40 sidecar
Power & physical
Power	PoE or 5V/1.2A adapter
Dimensions	Approximately 245 × 200 × 41 mm
Wall mount	Yes
In the box
Included	T46S handset, base, curl cord, ethernet cable, stand, provisioning card
Not included	Power adapter, USB headset, sidecar

How it works on voip.army.

Plug the T46S into PoE and ethernet. About a minute later it has registered to your extension. Same auto-provisioning flow as every other supported phone — no SIP credentials to type, no firmware to chase.

60s

Time from plug-in to first call

Boot, fetch config from our provisioning server, register, ready. About one minute on a normal connection.

SIP accounts on one phone

16 lines per phone. Each line key has a dual-color LED for status at a glance.

Programmable keys

10 line + multi-page mapped from the voip.army portal — BLF, paging, parking, transfer destinations.

Per-device onboarding fees

Bringing your own? Send us the MAC, factory-reset, plug in. No charge to add it to the fleet.

802.3af

PoE class

Standard PoE — any 802.3af-compliant switch from the last 15 years powers the phone without an adapter.

Yealink

Auto-provisioning template

Tested against every Yealink firmware release for T46S. We catch regressions before they reach your fleet.

Need T46Ss for 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.

Get a quote Start a free trial first

✓ Free shipping on orders $200+ ✓ 30-day hardware return ✓ Pre-configured before shipping

Yealink T46SThe T46G with USB headset support.

Why the T46S is on the catalog.

Full technical specifications.

How it works on voip.army.

Time from plug-in to first call

SIP accounts on one phone

Programmable keys

Per-device onboarding fees

PoE class

Auto-provisioning template

Phones to compare it against.

Yealink T46G

Yealink T46U

Yealink T48S

Need T46Ss for every desk?