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Yealink · T2 series · 6-line gigabit

Yealink T27GSix lines, gigabit, USB, under $130.

Six SIP accounts, a 3.66-inch 240×120 backlit monochrome screen, 21 multi-page programmable keys, dual gigabit ethernet with PoE, a USB port for wired or wireless headset support, and EHS. The T27G is the T2 series' power-user phone — and one of the best feature-per-dollar Yealinks in the catalog.

Display
3.66″ backlit · 240×120 mono
SIP accounts
6 lines
Programmable keys
21 multi-page · BLF-capable
Ethernet
Dual gigabit · PoE class 2
Audio
HD voice · full-duplex · USB headset
Power
PoE or 5V/2A adapter
$129 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 shipping on orders $200+
Yealink T27G voip desk phone — front view with handset and display
Yealink T27G

Why the T27G is on the catalog.

The T27G is the phone we recommend when someone asks for 'a real business phone without paying for a touchscreen.' Six SIP accounts is more than enough for almost any deployment short of a call-center supervisor. The 21 programmable keys spread across multiple visual pages give you serious BLF capacity without a sidecar — three pages of seven keys is enough to monitor a 15-20 person team comfortably.

The defining feature that puts it ahead of the T23G is the USB port. You can plug in a wired USB headset (Jabra, Plantronics, Yealink's own UH36) for clean two-channel audio with the host PC, or use Yealink's EHS adapter for wireless headset call control. For any agent or admin who spends real hours on the phone, this is the difference between a phone you tolerate and a phone you actually like.

Honest weakness: the screen is still monochrome. In 2026 a $50-more T53 gives you the same six lines with a 3.7-inch color screen and a marginally newer chassis. The T27G stays in the catalog because the price-to-feature ratio is unbeatable for monochrome-tolerant deployments — back-office, dispatch, call-center floor — and the firmware is exceptionally stable. For an executive desk, get the T53. For a working desk, get the T27G.

Full technical specifications.

Display & user interface
Display3.66-inch 240×120 pixel backlit graphical LCD
Programmable keys21 line keys across 3 visual pages, dual-color LEDs
Soft keys4 context-sensitive soft keys
Navigation5-way nav, dedicated hold / transfer / mute / message / headset / speaker keys
VoIP & SIP
SIP accountsUp to 6 SIP accounts
ProtocolsSIP v2 (RFC 3261), TLS, SRTP, STUN, BLF/BLA, shared call appearance
CodecsOpus, G.722, G.711(A/μ), G.723.1, G.729AB, G.726, iLBC
ProvisioningFTP/TFTP/HTTP/HTTPS, PnP, TR-069, Yealink RPS
SecurityHTTPS, TLS, SRTP, 802.1X, AES-encrypted config
Audio
HD voiceHD handset and HD speakerphone (G.722 wideband)
SpeakerFull-duplex hands-free with AEC
HeadsetRJ9 + USB (wired headset), EHS for wireless
Connectivity
EthernetDual 10/100/1000 Mbps gigabit
PoEIEEE 802.3af Class 2
USB1 × USB 2.0 (headset, Wi-Fi dongle WF40/WF50)
Wi-Fi / BluetoothVia optional WF40 (Wi-Fi) or BT40 (Bluetooth) USB dongles
Power & physical
PowerPoE 802.3af, or 5V/2A external adapter
DimensionsApproximately 241 × 220 × 41 mm
Wall mountYes
In the box
IncludedT27G handset, base, curl cord, ethernet cable, stand, provisioning card
Not includedPower adapter (PoE preferred), USB headset, Wi-Fi/BT dongles

How it works on voip.army.

Plug the T27G 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.

6

SIP accounts on one phone

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

21

Programmable keys

21 multi-page · BLF-capable mapped from the voip.army portal — BLF, paging, parking, transfer destinations.

0

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 T27G. We catch regressions before they reach your fleet.

Need T27Gs 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.

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