Fanvil X4U IP Phone with Gigabit and HD Voice

The Fanvil X4U IP Phone with Gigabit connectivity and HD Voice is a high‑end enterprise VoIP desk phone designed for professional business environments that demand advanced communication features, seamless integration, and excellent performance. Featuring a large color display, support for multiple SIP accounts, full Gigabit Ethernet, and built‑in Power over Ethernet (PoE), the X4U delivers premium voice quality, intuitive usability, and broad compatibility with SIP‑based systems. With enhanced conferencing capabilities, secure communication protocols, and flexible deployment options, this IP phone is ideal for corporate offices, call centers, and unified communications infrastructures.

Product Features

Large Full‑Color Display

High‑resolution full‑color LCD screen delivers clear presentation of call information, menus, contacts, and system status for intuitive navigation and improved user experience.

Multi‑Line SIP Support

Supports multiple SIP accounts to register and manage several VoIP lines simultaneously, enhancing call flexibility in business operations.

Gigabit Ethernet Connectivity

Dual 10/100/1000 Mbps Gigabit Ethernet ports provide high‑speed network performance for robust voice and data transmission across the network.

HD Voice and Wideband Audio

Delivers high‑definition audio with wideband codec support such as G.722 and Opus, ensuring clear, natural sounding voice communication on both handset and hands‑free speaker.

Power over Ethernet (PoE)

Integrated IEEE 802.3af PoE support allows both network connectivity and power delivery over a single Ethernet cable, simplifying installation and workspace setup.

Enhanced Multi‑Party Conferencing

Built‑in support for multi‑party local conferencing enables efficient on‑device collaborative calls without external conferencing tools.

Secure SIP Communication

Supports industry security protocols such as TLS and SRTP to protect SIP signaling and voice data from unauthorized access and ensure secure communications.

Comprehensive Call Handling Features

Provides advanced business telephony functions including call transfer, call forward, call hold, call waiting, call park, call pickup, speed dial, Do Not Disturb, caller ID, and auto‑answer.

EHS Wireless Headset Support

Compatible with Electronic Hook Switch (EHS) adapters for select wireless headsets to facilitate hands‑free operation in active work environments.

Flexible Provisioning and Mass Deployment

Supports centralized auto‑provisioning options including HTTP, HTTPS, FTP, TFTP, and DHCP to enable efficient enterprise‑level deployment and remote management.

Product Specifications

• Display: Full‑color LCD screen
• SIP Accounts: Multiple simultaneous SIP registrations
• Audio Codecs: G.711 A/U, G.722, G.729A/B, Opus
• Network Interfaces: Dual RJ45 10/100/1000 Mbps Gigabit Ethernet ports
• PoE Standard: IEEE 802.3af
• Conference Capacity: Multi‑party local audio conferencing
• Security Protocols: TLS, SRTP
• Provisioning Methods: HTTP, HTTPS, FTP, TFTP, DHCP option
• Phonebook Capacity: Large local phonebook storage
• Call Log Capacity: Extensive call history
• Keypad: Standard keypad with navigation and function keys
• Headset Support: RJ9 interface with EHS compatibility
• Installation Options: Desktop stand and wall mountable
• Power Supply: PoE or external power adapter (sold separately in some regions)
• Operating Temperature: Typically 0 to 45 degrees Celsius
• Dimensions: Standard enterprise desk phone size
• Weight: Typical for enterprise desk phone

The Fanvil X4U IP Phone offers advanced VoIP functionality, secure communications, and professional‑grade features tailored for businesses that require reliable, scalable, and high‑quality voice solutions within SIP‑based environments.