Fanvil Xu Series Business IP Phone

XU Series Business IP Phone
ModelMain ScreenSide ScreensSIP LinesEthernetBluetoothAudio Conf.
X6U4.3″ Color2x 2.4″ Color20GigabitBuilt-in6-way
X5U4.3″ Color12GigabitBuilt-in5-way
X4U3.5″ Color10GigabitBuilt-in5-way
X3U2.4″ Color6100MbpsOptional3-way
X3U Pro2.4″ Color6100MbpsOptional3-way

The XU Series Business IP Phones by Fanvil consist of five models, each catering to different needs and budgets:


  • X6U: This flagship model boasts a 4.3-inch main color screen, two 2.4-inch side screens, 20 SIP lines, HD voice, gigabit Ethernet, built-in Bluetooth, and 6-way audio conferencing.
  • X5U: Similar to the X6U, but with a single 4.3-inch color screen and 12 SIP lines.


  • X4U: Features a 3.5-inch color screen, 10 SIP lines, HD voice, gigabit Ethernet, built-in Bluetooth, and 5-way audio conferencing.


  • X3U: A basic model with a 2.4-inch color screen, 6 SIP lines, HD voice, 100Mbps Ethernet, and optional Bluetooth dongle.
  • X3U Pro: An enhanced version of the X3U with POE support and optional Wi-Fi dongle.

The Fanvil XU Series Business IP Phones are a line of enterprise VoIP communication products developed and manufactured by Fanvil Technology Co., Ltd. This series represents an innovation over the classical X series in both appearance and performance. Key features of the XU series include:

  1. Variety of Models: The series includes several models such as X3U, X4U, X5U, and X6U. Each of these models offers different features catering to various business needs.

  2. Display and Keys: The phones typically come with a 3.5-inch side color screen(s), up to 5 line keys, and 60 DSS keys.

  3. SIP Lines and Connectivity: They support up to 20 SIP Lines and provide Power over Ethernet (PoE) as well as Gigabit connectivity.

  4. Audio and Speaker Quality: The series is known for its crystal-clear audio experience, supported by a Harman speaker. It also includes the wideband codec of G.722 and Opus, ensuring stable HD audio in various network conditions.

  5. User-Friendly Design: These phones are designed for ease of use with clear displays and newly-added line keys and function keys with LED lights.

  6. Interoperability and Flexibility: The Fanvil XU series offers great interoperability with accessories like EHS headsets, built-in Bluetooth, and WiFi via WiFi dongle, enhancing the flexibility and efficiency of work.

  7. Compatibility with VoIP Systems: All models in the XU series run the open SIP protocol, making them compatible with a wide range of VoIP systems and services, including 3CX, Avaya, Broadsoft, and others​​​.

Fanvil Technology Co., Ltd, the manufacturer of these IP phones, is a global provider of VoIP communication devices and solutions, focusing on the needs of small and medium-sized businesses as well as large mission-critical enterprise environments​​