Grandstream GXW4216 High-Density Analog VoIP Gateway – 16 FXS Ports

Bring Analog Phones onto a VoIP Network at High Density — Grandstream GXW4216

The Grandstream GXW4216 lets you connect up to 16 analog phones or fax machines to a VoIP system or IP PBX, modernizing your communications while making use of existing analog devices instead of replacing them entirely.

Why Choose the GXW4216?

This gateway provides high FXS port density with an independent SIP account per port and multiple SIP server profiles, plus Gigabit networking and centralized management, making it ideal for a gradual migration from analog to IP communications.

What Does It Offer?

• 16 FXS ports: for connecting analog phones or fax machines.


• 16 SIP accounts: an independent account for each FXS port.


• 4 SIP server profiles: for flexible connection to multiple servers or communication systems.


• Up to 16 concurrent calls: depending on system configuration and codec used.


• Gigabit Ethernet network port: 10/100/1000Mbps.


• 3-way voice conferencing per port.


• Wideband audio: with G.722 support and multiple voice codecs.


• Fax over IP: T.38 support for connecting analog fax machines.


• Secure communications: supports SRTP, TLS and HTTPS.


• Centralized setup and management: with secure provisioning options and compatibility with SIP and IP-PBX environments.

Key Technical Specifications

• Model: GXW4216


• Type: High-Density FXS VoIP Gateway


• FXS ports: 16


• SIP accounts: 16


• SIP server profiles: 4


• Network: 1 × Gigabit Ethernet


• Concurrent calls: up to 16


• Fax over IP: T.38


• Voice conference: 3 parties per port

Best Suited For

Businesses, branches and facilities that need to connect up to 16 analog phones or fax machines to an IP PBX.

Make the most of your existing analog devices and move your communications to VoIP with greater flexibility — order the Grandstream GXW4216 from Catcher.