VVX 411 vs VVX 450 — what's the upgrade?

Three things: a larger 4.3-inch color display (vs 3.5-inch), two USB ports (vs zero), and a current UCS 6.x firmware track. About $20 more for materially more phone.

Does the VVX 450 have Bluetooth?

Not built in, but the rear USB port accepts a Poly BT600 Bluetooth USB dongle. With it you can pair a Bluetooth wireless headset and use the phone hands-free across the room.

How many BLF / line keys can I configure on a VVX 450?

Twelve on-screen line keys across two pages. Add a VVX EXP 50 expansion module for 28 more multi-color keys per module across three pages — chain up to three modules for a total of 96 programmable keys (12 on-phone + 84 expansion).

Will the VVX 450 auto-provision on voip.army?

Yes. We ship every VVX 450 pre-configured. Plug into PoE and Ethernet, wait a minute, take a call. For BYO, send the MAC, factory-reset, plug in — same outcome.

Poly · VVX series · color 12-line · current gen

Poly VVX 450A color 12-line · current gen that just keeps working.

The VVX 450 is Poly's current-generation twelve-line color desk phone — a 4.3-inch color TFT, gigabit Ethernet on both ports, dual USB (front and back), and full UCS 6.x firmware support. The volume mid-tier pick for sales floors, managers, and anyone monitoring more than a handful of BLF buddies on a color screen.

Display

4.3″ color · 480×272

SIP accounts

12 lines

Ethernet

Dual gigabit

USB ports

2× USB

Bluetooth / Wi-Fi

—

Expansion

VVX EXP 50

$239 one-time

or rent for $17.99/mo — month-to-month, return anytime

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

Order a VVX 450 Rent for $17.99/mo Datasheet (PDF) ↓

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

Poly VVX 450 VoIP desk phone — front view with handset and dialpad — Poly VVX 450

Why the VVX 450 is on the catalog.

The VVX 450 is the phone we ship more of than any other Poly model in our catalog. Twelve SIP lines is enough for any individual contributor, the 4.3-inch color screen has room for full BLF labels with status colors, gigabit Ethernet on both ports means no choke point for workstations behind the phone, and the dual USB ports let you run a headset and a Wi-Fi or Bluetooth dongle at the same time.

It's the direct equivalent in the Poly lineup of the Yealink T46U or the Cisco 8851 in their respective lineups — the safe, capable, mid-tier color phone that does everything most people need and that you don't have to think too hard about specifying.

Where it isn't the right phone: if you want a touchscreen, look at the VVX 501 (which is the touch equivalent of the 450). If you specifically need built-in Bluetooth or Wi-Fi (not via dongle), no current VVX has those built in — you'd be looking at a different family. For an entry-level desk where twelve lines is overkill, the VVX 350 (six lines, greyscale, same dual USB) saves you about $70.

Full technical specifications.

Display & user interface
Display	4.3-inch 480×272 color LCD
Line keys	12 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 12
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	2 USB 2.0 host ports
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	VVX EXP 50
Physical
Weight	1.02 kg
Dimensions	248 × 178 × 165 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, expansion module

How it works on voip.army.

Plug the VVX 450 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 12 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 ports 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 450s 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