Grandstream 48 port FXS Gateway
48-port FXS VoIP gateway for connecting analog phones and fax machines to IP PBX systems and VoIP networks.
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The Grandstream GXW4248 is a high-density 48-port FXS VoIP gateway designed for large enterprises, hotels, call centers, and service providers that need to integrate a large number of analog devices into an IP-based communication system.
It provides 48 FXS ports (RJ11), allowing connection of analog phones, fax machines, and legacy PBX systems into a modern VoIP network.
The device supports Gigabit network connectivity, ensuring stable and high-speed voice transmission even in high-call-volume environments.
It is fully SIP-compliant and interoperable with most IP PBX systems, making it suitable for hybrid deployments where analog and IP systems coexist.
The GXW4248 delivers carrier-grade voice quality with advanced echo cancellation and support for multiple voice and fax codecs (including T.38) for reliable fax over IP.
It also supports centralized provisioning and remote management, making it easy to deploy and maintain across large installations with multiple locations.
✨ Key Features
- 48 FXS ports (RJ11)
- Supports up to 48 analog devices
- Gigabit Ethernet port (10/100/1000 Mbps)
- SIP compliant and IP PBX compatible
- HD voice with advanced echo cancellation
- T.38 Fax-over-IP support
- Independent SIP account per port
- Flexible dial plans and call routing
- Centralized provisioning (HTTP/HTTPS/TR-069)
- Carrier-grade security (TLS, SRTP, HTTPS, secure boot)
- Rack-mountable (1U design)
