Grandstream 24 port FXS Gateway
24-port FXS VoIP gateway for connecting analog phones and fax machines to IP networks and IP PBX systems.
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he Grandstream GXW4224 is a high-performance 24-port FXS VoIP gateway designed to connect a large number of analog telephones, fax machines, and legacy PBX systems to modern IP-based VoIP networks.
As part of the GXW4200 series, it is a high-density, carrier-grade solution ideal for enterprises, hotels, call centers, and service providers looking to integrate traditional telephony infrastructure into a scalable VoIP environment.
The GXW4224 features 24 FXS ports (RJ11) with optional 50-pin Telco connector support, allowing connection of up to 24 analog devices simultaneously.
It includes a Gigabit Ethernet port (10/100/1000 Mbps) to ensure fast, stable network connectivity for voice traffic.
The device supports multiple SIP server profiles with independent SIP accounts per port, enabling flexible deployment, multi-tenant configurations, and efficient call routing.
It delivers carrier-grade voice quality, supporting wideband codecs such as Opus and G.722, along with advanced echo cancellation and jitter buffer for clear and stable communication.
The GXW4224 also supports T.38 Fax-over-IP, ensuring reliable fax transmission over IP networks.
Key Features
- 24 FXS ports (RJ11) for analog device connectivity
- Optional 50-pin Telco connector support
- Gigabit Ethernet port (10/100/1000 Mbps)
- Independent SIP account per port
- Multiple SIP server profiles (multi-tenant support)
- HD voice with wideband codecs (Opus, G.722)
- T.38 Fax-over-IP support
- Advanced echo cancellation and jitter buffer
- 132x48 backlit LCD display
- Automated provisioning (TR-069, HTTP, HTTPS)
- Centralized management via GDMS
- Enterprise security (TLS, SRTP, HTTPS, secure boot)
- Rack-mountable (1U) or desktop installation
- Ideal for enterprises, hotels, call centers, ISPs
