At a glance
- SIP Accounts
- 12
- Programmable Keys
- 3 line keys, 6 DSS keys with LED
- Network Ports
- 2 x 10/100/1000 Mbps RJ45
- PoE
- Yes, integrated
- Wi-Fi
- Via optional WF20 USB dongle
- Dimensions
- 214 x 119.4 x 219.1 mm (wall mounted)
Model X4UV2Current modelFanvil X4U V2 IP Phone, 12 SIP Lines, Dual Colour Screens, PoE
Price on request
At a glance
- SIP Accounts
- 12
- Programmable Keys
- 3 line keys, 6 DSS keys with LED
- Network Ports
- 2 x 10/100/1000 Mbps RJ45
- PoE
- Yes, integrated
- Wi-Fi
- Via optional WF20 USB dongle
- Dimensions
- 214 x 119.4 x 219.1 mm (wall mounted)
Desk phone for receptionists, supervisors and assistants who watch colleagues’ lines and transfer calls all day, with a second screen that labels its quick keys. 12 SIP lines, up to 30 programmable keys (DSS), gigabit ports and PoE.
Part of the Fanvil XU Series. Compare all 5 models
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- WarrantyManufacturer warranty under Fanvil's terms. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
What it is
The Fanvil X4U V2 is a mid-range SIP desk phone (Session Initiation Protocol) with two colour displays: a 2.8 inch, 320 x 240 main screen and a 2.4 inch side screen that labels the DSS (direct station select) keys.
What it is used for
It suits receptionists, supervisors and assistants who watch colleagues’ lines with BLF (busy lamp field) keys and transfer calls all day.
Key features
- 12 SIP lines with 3 line keys on the main display
- 6 DSS keys with LEDs on the side screen, up to 30 DSS functions over 5 pages
- HD audio with G.722 and Opus, 6-way local conference
- Two gigabit Ethernet ports and integrated PoE (Power over Ethernet)
- USB 2.0 port for the Fanvil BT20 Bluetooth or WF20 Wi-Fi dongle
- EHS wireless headset support
Buying considerations
The phone needs an IP PBX or hosted SIP service. It has no built-in Bluetooth or Wi-Fi; add the BT20 or WF20 dongle when needed. Fanvil lists a DC 5 V / 2 A input as the alternative to PoE.
Installation considerations
The stand sets 45 or 50 degrees. Wall mounting needs an extra bracket; Fanvil lists the X4U for the WB102 bracket.
Compatibility
Open SIP lets it register with common PBX and cloud platforms. The Fanvil FDMS device management system can be used for fleet management.
Technical specifications
Key facts
- What is it?
- IP desk phoneBrand Fanvil, model X4UV2
- How is it powered?
- 5 V DC
- Does it support PoE?
- Yes
- Can it be used outdoors?
- Indoor
- Which documents are available?
- Quick start guide, user guide, firmware Open documents
- Not stated by the manufacturer
- box contents
RelatedSeriesFanvil XU Series, 5 modelsDocumentsAll Fanvil documents
- SIP Accounts
- 12
- Display
- 2.8 inch 320 x 240 main colour screen plus 2.4 inch DSS colour screen
- Programmable Keys
- 3 line keys, 6 DSS keys with LED (up to 30 via 5 pages)
- Network Ports
- 2 x 10/100/1000 Mbps RJ45
- PoE
- Yes, integrated
- Wi-Fi
- Via optional WF20 USB dongle
- Bluetooth
- Via optional BT20 USB dongle
- HD Audio
- Yes, G.722 and Opus
- Conference
- 6-way local audio
- Headset Port
- RJ9, EHS wireless headset support
- USB
- 1 x USB 2.0
- Power
- PoE or 5 V DC / 2 A
- Power Consumption
- 1.27 W to 6.80 W on PoE
- Dimensions
- 214 x 119.4 x 219.1 mm (wall mounted)
- Operating Temperature
- 0 to 45 °C
- Warranty
- Manufacturer warranty under Fanvil's terms. How claims work
Product attributes and shipping details
| Brand | Fanvil |
|---|---|
| Connectivity | PoE, SIP |
| Ports | 2 x Gigabit Ethernet |
| Mounting | Desktop, Wall |
| Environment | Indoor |
| Supply Voltage | 5 V DC |
| PoE role | Powered device |
Downloads
User manual
Firmware
- Fanvil firmware: X4Un/a (device firmware) · Released September 29, 2026Prerequisites: Read release note on page; Page firmware labelled X4U-V2; matches store X4U V2Licence: FreeFirmware · Family · fanvil.comView official download page
Series documents can differ from your exact model. Report a wrong or missing file
Works with this product
Relevant accessories
- Fanvil BT20 USB Bluetooth Dongle for IP Phones, Bluetooth 4.0BT20
Why The X4U supports a Bluetooth headset through the BT20 dongle.
Price on requestAdd to quote - Fanvil WF20 USB Wi-Fi Dongle for IP Phones, 2.4 GHz 150 MbpsWF20
Why The X4U supports Wi-Fi through the WF20 dongle.
Price on requestAdd to quote
Upgrades
- Fanvil X5U V2 IP Phone, 16 SIP Lines, Bluetooth, Dual ScreensX5UV2
Why X5U adds 16 lines, a 3.5 inch screen and built-in Bluetooth.
Price on requestAdd to quote
Questions about this product
Does the X4U V2 have Bluetooth?
Not built in. Fanvil supports Bluetooth headsets on the X4U through the BT20 USB dongle.
How many DSS keys can be programmed?
Six physical keys on the side screen, with up to 30 functions across 5 pages.
Can it use Wi-Fi?
Yes, through the optional Fanvil WF20 USB Wi-Fi dongle, which supports 2.4 GHz on these phones.
Ask about this modelSetup, compatibility, what is in the box
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