About Grandstream GXW4248V2 48 Port FXS Analogue VOIP Gateway

The Grandstream GXW4248V2 is a high-density 48-port FXS analogue VoIP gateway that lets businesses of any size bridge their existing analogue phones, fax machines, and legacy PBX equipment into a modern SIP-based phone system. With a Gigabit Ethernet port, support for up to 48 concurrent calls, and full SIP compliance, it's a cost-effective way to get more out of your current hardware without ripping everything out and starting from scratch.

Key Features

• 48 FXS Analogue Ports — Connect up to 48 analogue devices via two 50-pin RJ21 Telco connectors, with an independent SIP account configurable per port for maximum flexibility.
• Gigabit Ethernet — A single auto-sensing 10/100/1000Mbps RJ45 port keeps things running fast and bottleneck-free, even with a full house of connected devices.
• Near-HD Audio Quality — Wideband audio support delivers rich, natural call quality across all ports, with advanced 128ms echo cancellation keeping calls clean.
• 3-Way Local Conferencing Per Port — Each FXS port supports simultaneous three-way voice conferencing, without needing to lean on your PBX to do the heavy lifting.
• 4 SIP Server Profiles — Configure up to four SIP server profiles per system, with automatic failover to a secondary server if the primary drops out — handy for keeping calls connected.
• Fax & Security Support — Supports T.38 and pass-through fax-over-IP per port, plus TLS and SRTP encryption with AES to keep calls and accounts secure.
• Easy Provisioning — Supports TR-069, XML config files, and Grandstream's GDMS cloud provisioning platform, with Zero Configuration support when paired with Grandstream UCM IP PBXs.

Why Choose This Product?

If you're running a large analogue phone fleet and want the benefits of VoIP without replacing every handset, the GXW4248V2 is a smart way to make the move. It's built to handle high call volumes, plays well with leading IP PBXs and soft switches, and is straightforward to deploy and manage. Our Telrexperts can help you work out the right gateway configuration for your setup.

What's in the Box

• Grandstream GXW4248V2 48-Port FXS VoIP Gateway
• AC Power Adapter
• Network Cable
• Mounting Bracket
• Quick Installation Guide