Fanvil X4U IP Phone

Overview

The Fanvil X4U (current version: X4U-V2) is a mid-range enterprise IP phone featuring dual color displays for enhanced productivity and flexibility.

Display & Interface

• Main Display: 2.8-inch color LCD (320×240 pixels)
• Side Display: 2.4-inch color LCD for DSS keys
• Line Keys: 3 line keys with LED indicators on main display
• DSS Keys: Up to 30 programmable DSS keys (Directory/Speed Dial)
• Soft Keys: 4 interactive soft keys

Core Features

• SIP Lines: 12 SIP lines supported
• Conference: 6-way audio conference capability
• SIP Hotspot: Share network connectivity
• Phonebook: 1000 local entries

Audio Quality

• Harman Speaker: Premium audio quality
• HD Voice: Crystal-clear audio on handset and speakerphone
• Codecs: Wideband G.722 and Opus support
• Audio Enhancement:
  • Voice Activity Detection (VAD)
  • Comfort Noise Generation (CNG)
  • Background Noise Estimation (BNE)
  • Noise Reduction (NR)
  • Automatic Gain Control (AGC)

Connectivity

• Dual Gigabit Ethernet Ports: 10/100/1000 Mbps with PC pass-through
• PoE Support: Power over Ethernet (802.3af)
• USB Port: For dongles and local call recording

Expandability (Optional Accessories)

• EHS Headset: Wireless headset support via EHS cable
• Bluetooth: Via optional BT20 Bluetooth dongle (Bluetooth 4.2)
• Wi-Fi: Via optional Wi-Fi dongle for wireless connectivity
• USB Recording: Record calls locally to USB stick

Network Features

• IP Configuration: Static IP, DHCP, or PPPoE
• IPv4/IPv6: Dual stack support
• Security:
  • 802.1x authentication
  • OpenVPN support
  • QoS control
• Provisioning: FTP/FTPS/TFTP/HTTP/HTTPS for mass deployment

Physical Features

• Adjustable Stand: 2 angles (45° and 50°)
• Installation: Desktop or wall-mounted
• Dedicated Ports: RJ9 headset port

Platform Compatibility

• 3CX, Asterisk, Broadsoft, Elastix, Avaya, Yeastar
• Compatible with mainstream SIP-based VoIP platforms

Key Improvements (V2 vs Original)

• Conference: Upgraded from 3-way to 6-way conference
• Bluetooth 4.2: Added Bluetooth support
• 12 SIP Lines: Increased from previous version
• 3 Line Keys: Added to main display
• SBC Capability: Can function as Session Border Controller

Ideal For

• Front desk staff
• Mid-level office users
• Receptionists
• Power users needing multiple lines
• Businesses requiring flexible desk phones