The Grandstream GS-GXW4216 16-Port FXS Gateway is a high-quality analog VoIP gateway designed to connect traditional analog telephones, fax machines, and other analog devices to modern IP voice networks and SIP-based communication systems. With 16 FXS ports, the GXW4216 provides an efficient way for businesses to integrate existing analog equipment with an IP-PBX or hosted VoIP platform.

The GXW4216 supports up to 16 SIP accounts, allowing each FXS port to be configured independently for different extensions or services. It is suitable for businesses, hotels, hospitals, offices, and organizations that need to maintain existing analog telephone infrastructure while transitioning to a VoIP environment.

For network connectivity, the gateway provides Gigabit Ethernet ports, supporting high-speed network communication and flexible deployment. The device supports advanced SIP functionality, including SIP over UDP, TCP and TLS, as well as SRTP for secure voice communication. It also provides multiple codec options to help deliver reliable voice quality across different network conditions.

The Grandstream GXW4216 supports advanced telephony features such as call waiting, call forwarding, call transfer, three-way conferencing, voicemail, caller ID, and flexible dial plans. Its centralized provisioning and management capabilities make it easier for administrators to configure and maintain multiple gateways in business environments.

With its 16 FXS ports, SIP compatibility, high-quality voice support, and robust network connectivity, the Grandstream GXW4216 is a practical solution for connecting analog phones and devices to IP-based communication systems.

Key Features

• 16 FXS analog telephone ports
• Up to 16 SIP accounts
• Designed for analog-to-VoIP conversion
• Supports analog phones and fax machines
• Gigabit Ethernet connectivity
• SIP over UDP, TCP and TLS
• SRTP support for secure voice communication
• Multiple audio codecs
• Caller ID support
• Call waiting
• Call forwarding
• Call transfer
• 3-way conferencing
• Voicemail support
• Flexible dial plans
• T.38 fax support
• Echo cancellation
• Jitter buffer
• Advanced SIP features
• Centralized provisioning and management
• Suitable for IP-PBX and hosted VoIP deployments
• Ideal for offices, hotels, hospitals and businesses