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Yealink · T2 series · legacy 2-line

Yealink T20PThe discontinued original, sold used for fleet matching.

Two SIP accounts, a 132×64 backlit screen, dual 10/100 ethernet with PoE, RJ9 headset port. The T20P is the original entry-tier T2 chassis from 2010 — discontinued, sold by us only as refurbished stock for customers maintaining legacy deployments.

Display
2.0″ backlit · 132×64 mono
SIP accounts
2 lines
Programmable keys
2 line keys
Ethernet
Dual 10/100 · PoE class 1
Audio
HD voice · full-duplex speaker
Power
PoE or 5V adapter
$59 one-time
or rent for $7.99/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 T20P voip desk phone — front view with handset and display
Yealink T20P

Why the T20P is on the catalog.

The T20P is genuinely old — Yealink's original two-line T2 chassis from circa 2010, before the E2 generation refresh. We stock it only as refurbished units, and only because a handful of customers have 50+ T20Ps in production and need to keep the fleet uniform when a unit fails. Buying new from voip.army, you would get the T21P E2 instead.

What it actually is: two SIP accounts, a small monochrome screen, the classic ribbed-keypad T2 feel, no support for modern codecs like Opus, no support for current Yealink RPS provisioning enhancements. It still provisions on voip.army — we have an old-revision template that targets pre-E2 firmware — but the feature parity stops there.

Where to buy: literally only fleet-matching. If you walked in cold today and asked for an entry-tier Yealink, we would put a T31P or T21P E2 on your desk and never mention this unit. Listed here because some customers specifically search for it and we would rather sell them a known-good refurb than have them buy unknown-quality stock elsewhere.

Full technical specifications.

Display & user interface
Display2.0-inch 132×64 backlit graphical LCD
Line keys2 dual-color LED line keys
Soft keys4 context-sensitive soft keys
Navigation4-way nav (older layout)
VoIP & SIP
SIP accountsUp to 2 SIP accounts
ProtocolsSIP RFC 3261, TLS, SRTP
CodecsG.722, G.711, G.723.1, G.729AB, G.726 (no Opus)
ProvisioningFTP/TFTP/HTTP auto-provision (pre-RPS)
Audio
HD voiceHD handset and HD speakerphone
SpeakerFull-duplex with AEC
HeadsetRJ9 wired headset port
Connectivity
EthernetDual 10/100 Mbps
PoEIEEE 802.3af Class 1
Wi-Fi / BluetoothNot supported
Power & physical
PowerPoE or external 5V adapter
DimensionsApproximately 200 × 178 × 38 mm
Wall mountYes
In the box
IncludedRefurbished T20P handset, base, curl cord, ethernet cable, stand, provisioning card
Not includedPower adapter (PoE preferred), retail packaging

How it works on voip.army.

Plug the T20P 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.

2

SIP accounts on one phone

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

2

Programmable keys

2 line keys 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 T20P. We catch regressions before they reach your fleet.

Need T20Ps 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