Does the VVX 250 support an expansion module / sidecar?

No. The VVX 250 doesn't have an expansion module connector. If you need more programmable keys for BLF monitoring, look at the VVX 350 (supports VVX EXP 50) or the VVX 450.

Is the VVX 250 a touchscreen?

No — it has a color screen but it's not touch-enabled. You navigate with the soft keys and the four-way nav cluster. If you want touch, the VVX 501 is the entry-level touch VVX, but for most workflows the soft keys are faster anyway.

Can I use a USB headset with the VVX 250?

Yes. The single USB-A port supports Poly, Plantronics, Jabra, and most other USB DSP headsets. The phone will auto-detect the headset and route audio to it. The RJ9 jack still works in parallel.

Does the VVX 250 have Wi-Fi?

Not built in, but the USB port accepts a Poly Wi-Fi 5 USB dongle. If you need built-in Wi-Fi, none of the VVX 200/300 series has it — you'd need a third-party model or step up significantly.

Poly · VVX series · color workhorse

Poly VVX 250A color workhorse that just keeps working.

The VVX 250 is the four-line color member of Poly's current business IP phone lineup. A 2.8-inch color LCD, gigabit Ethernet, a USB-A port for a headset or recording dongle, and Opus codec support — all in the same compact desk-friendly chassis as the entry-tier 150. For small business desks where you want color and gigabit but not a touchscreen, this is the volume pick.

Display

2.8″ color · 320×240

SIP accounts

4 lines

Ethernet

Dual gigabit

USB ports

1× USB

Bluetooth / Wi-Fi

—

Expansion

—

$139 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 VVX 250 Rent for $11.99/mo Datasheet (PDF) ↓

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

Poly VVX 250 VoIP desk phone — front view with handset and dialpad — Poly VVX 250

Why the VVX 250 is on the catalog.

The VVX 250 is what most small businesses should buy when they're standing up new desks. It's the smallest color VVX, and the cheapest one with gigabit Ethernet on both ports, which matters more than the screen does — you don't want a workstation behind the phone capped at 100 Mbps in 2026, period.

Four SIP lines is usually plenty for an individual: a personal line, a department line, a shared inbox, an after-hours queue. The single USB port handles a headset, a recording dongle, or a Wi-Fi adapter — pick one, you can't have all three at once, that's where the 350 or 450 comes in. The 2.8-inch color screen is small but legible, and Poly's UI on it doesn't waste pixels with chrome.

Where it isn't the right phone: if you're going to use BLF keys to monitor more than four colleagues, the VVX 250 will feel cramped because it doesn't support an expansion module. Step up to the VVX 350 (six lines, expansion module support) or the VVX 450 (twelve lines, color, expansion). If you wear a headset all day and also want a Wi-Fi adapter, the single USB port becomes the bottleneck — the VVX 350 has two USB ports.

Full technical specifications.

Display & user interface
Display	2.8-inch 320×240 color LCD
Line keys	4 programmable line keys
Soft keys	4 context-sensitive soft keys under the display
Physical keys	Dialpad, hold, mute, transfer, headset, message, redial, volume, navigation
Languages	Multiple on-screen languages (English, Spanish, French, German, Portuguese, etc.)
VoIP & SIP
SIP accounts	Up to 4
SIP protocols	SIP v2 (RFC 3261), TLS / SRTP, NAT traversal, BLF / BLA, shared call appearance
Codecs	Opus, G.722, G.722.1, G.711a/μ, G.729AB, iLBC, Siren 14 / 22
DTMF	In-band, RFC 2833, SIP INFO
QoS	802.1p/Q VLAN tagging, DiffServ ToS, LLDP-MED
Audio
Speaker	Full-duplex with Polycom Acoustic Clarity (AEC, dynamic noise reduction)
HD voice	Polycom HD Voice on handset and speakerphone
Headset support	RJ9 headset jack, USB headset, EHS via APP-51 adapter (sold separately)
Connectivity
Ethernet	Dual-port 10/100/1000 Mbps gigabit
PoE	IEEE 802.3af Class 2
USB	1 USB 2.0 host port
Bluetooth	Not supported
Wi-Fi	Not supported (USB dongle not officially supported)
Power & expansion
Power source	PoE 802.3af Class 2 (preferred) or Poly 5V/0.6A power adapter (sold separately)
Expansion module	Not supported
Physical
Weight	0.81 kg
Dimensions	201 × 173 × 173 mm
Wall-mountable	Yes
Operating temperature	0 to 40 °C (32 to 104 °F)
In the box (from voip.army)
Included	Handset, base unit, curl cord, ethernet cable, stand, quick-start card, voip.army provisioning card with extension & SIP credentials pre-loaded
Not included	Power adapter (PoE preferred), EHS adapter for wireless headsets

How it works on voip.army.

Plug the VVX 250 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 internet connection.

SIP accounts on one phone

Run up to 4 simultaneous SIP registrations. Each line key has a dual-color LED for status.

Per-device onboarding fees

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

Ethernet to the workstation

Gigabit pass-through to a daisy-chained workstation — no bottleneck for big file transfers.

USB headset ports

USB host port for any standard headset (Jabra, Plantronics) — plug and play.

802.3af

PoE class

Class 2 on most VVX. Any standard 802.3af switch powers it; no separate adapter needed.

Need VVX 250s 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.

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