The Grandstream GXW4224 is a high-density 24-port FXS VoIP Gateway designed to integrate traditional analog telephony systems with modern IP-based communication networks. It enables businesses to connect existing analog phones, fax machines, and legacy PBX systems to VoIP platforms while preserving their existing telephone infrastructure.
The GXW4224 features 24 FXS ports for analog telephone connectivity, along with 1 Gigabit Ethernet port for high-speed network communication. It supports independent SIP accounts per telephone port and up to 4 SIP server profiles per system, providing flexible integration with IP-PBXs, softswitches, and SIP-based communication platforms.
The gateway delivers high-quality voice communication with support for wideband audio codecs, advanced echo cancellation, dynamic jitter buffering, and simultaneous 3-way conferencing on each port. It also provides comprehensive security and provisioning features, making it suitable for professional business and enterprise deployments.
Key Features:
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24 × RJ11 FXS ports for analog telephone connections.
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1 × RJ21 50-pin Telco connector.
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1 × 10/100/1000Mbps Gigabit Ethernet port.
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Up to 4 SIP server profiles per system.
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Independent SIP account support for each telephone port.
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Supports SIP over UDP, TCP, and TLS.
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Supports HD voice and wideband codecs including Opus and G.722.
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Supports simultaneous 3-way voice conferencing per port.
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T.38 Fax over IP support.
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Advanced carrier-grade line echo cancellation.
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Dynamic jitter buffer for improved voice quality.
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Supports Caller ID, call waiting, call transfer, call forwarding, Do Not Disturb, paging, and other advanced telephony features.
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Supports SRTP, TLS/SIPS, HTTPS, and AES-128 encryption.
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Supports VLAN and QoS features for optimized voice traffic.
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Automated provisioning through TFTP, HTTP, HTTPS, and TR-069.
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Supports centralized management through web interface, Syslog, and other management tools.
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Designed for interoperability with leading IP-PBXs, softswitches, and SIP-based platforms.
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Supports desktop and rack-mount installation.
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Designed for reliable integration of analog and IP telephony systems.
Applications:
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Enterprise and corporate offices.
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Small and medium-sized businesses.
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Hotels and hospitality environments.
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Call centers.
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Educational institutions.
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Healthcare facilities.
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Multi-branch organizations.
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Legacy PBX to VoIP migration.
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Analog phone and fax integration.
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Hybrid analog/IP telephony deployments.
The Grandstream GXW4224 provides a scalable and reliable solution for organizations that need to integrate a large number of analog endpoints with modern VoIP infrastructure, offering high-density FXS connectivity, Gigabit networking, advanced voice features, and strong security in a professional-grade gateway.