Product Overview

The Grandstream GXW4224 is a high-density 24-port FXS VoIP gateway that enables businesses to connect analog phones, fax machines, and legacy PBX systems to modern SIP-based IP networks. It provides a cost-effective way to migrate from traditional telephony infrastructure to advanced VoIP communication systems.

Part of the GXW4200 series, this gateway delivers carrier-grade voice quality, strong security features, and automated provisioning, making it suitable for enterprises, hotels, service providers, and organizations that still rely on analog devices but want to integrate them with IP PBX platforms.

The device includes 24 RJ11 FXS ports and a 50-pin Telco connector, allowing simplified high-density connections to analog devices such as phones and fax machines.

Key Features

📞 High-Density Analog Connectivity

• 24 FXS ports (RJ11) for analog phones or fax machines

• 1 × 50-pin Telco connector for high-density cabling installations.

🌐 SIP & VoIP Compatibility

• Supports SIP protocol (RFC 3261)

• Independent SIP account per port for flexible configuration with IP PBX systems.

🔊 Carrier-Grade Voice Quality

• Wideband voice codecs including G.722 and Opus

• Advanced 128 ms echo cancellation and dynamic jitter buffer for superior call clarity.

📡 Gigabit Network Connectivity

• 1 × Gigabit Ethernet port (10/100/1000 Mbps)

• Supports VLAN tagging and QoS for prioritizing voice traffic.

⚙️ Automated Provisioning

• Supports TR-069, HTTP, HTTPS, and TFTP provisioning

• AES-encrypted XML configuration files for secure deployment.

🔐 Enterprise Security

• TLS and SRTP encryption to protect calls

• Secure boot, device certificates, and dual firmware images.

🖥️ Easy Management

• Backlit LCD display with multi-language support

• Web-based configuration and remote management.

Technical Specifications

The gateway also supports advanced telephony features such as caller ID, call waiting, call transfer, call forward, 3-way conferencing, paging, and message waiting indication, ensuring full PBX functionality for analog devices.

Package Contents

Typical package includes:

• Grandstream GXW4224 VoIP Gateway

• Power adapter

• Ethernet cable

• Rack-mount brackets

• Quick installation guide.

Ideal Use Cases

The Grandstream GXW4224 is ideal for:

• Hotels and hospitality phone systems

• Enterprises migrating from analog PBX to VoIP

• Call centers and service providers

• Educational institutions

• Government and large organizations

It allows businesses to preserve existing analog infrastructure while integrating with modern SIP-based communication systems.

Useful Links

Official Product Page
https://www.grandstream.com/products/gateways-and-atas/fxs-gateways/product/gxw4200-series

Datasheet (GXW4200 Series)
https://www.grandstream.com/hubfs/Product_Documentation/GXW4200/Datasheet_GXW4200.pdf

Grandstream Device Management System (GDMS)
https://www.gdms.cloud

Firmware & Technical Support
https://www.grandstream.com/support