The VVX 411 is the direct successor to the VVX 410 — same twelve-line color chassis, gigabit Ethernet, refreshed processor. For customers maintaining a VVX 410 fleet, it's the drop-in replacement; for new deployments, the VVX 450 (which adds dual USB) is usually the smarter choice for similar money.
The VVX 411 replaced the VVX 410 in 2017 with the same internal CPU refresh that turned the 300 into the 301 and the 400 into the 401. Same exact chassis, same twelve lines, same gigabit Ethernet — just a faster processor and a longer firmware support runway.
It's the phone we recommend when someone is expanding an existing VVX 410 fleet and wants matching SKUs. For greenfield deployments the VVX 450 is the better choice at a similar price: same color twelve-line layout, but with two USB ports for headsets and dongles.
Where it isn't the right phone: if any part of your team uses USB headsets, the 411 has no USB and the 450 (about $20 more) is the obvious upgrade. If you don't need gigabit, the VVX 401 saves you twenty bucks with no other compromise.
| Display & user interface | |
| Display | 3.5-inch 320×240 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, EHS via APP-51 adapter (sold separately) |
| Connectivity | |
| Ethernet | Dual-port 10/100/1000 Mbps gigabit |
| PoE | IEEE 802.3af Class 2 |
| USB | None |
| 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 |
Plug the VVX 411 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.
Boot, fetch config from our provisioning server, register, ready. About one minute on a normal internet connection.
Run up to 12 simultaneous SIP registrations. Each line key has a dual-color LED for status.
Bringing your own? Send us the MAC, factory-reset, plug in. No charge to add it to the fleet.
Gigabit pass-through to a daisy-chained workstation — no bottleneck for big file transfers.
No USB. Wired RJ9 headset jack only (if equipped).
Class 2 on most VVX. Any standard 802.3af switch powers it; no separate adapter needed.
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.