Grandstream GXW4248

Overview

The Grandstream GXW4248 is a VoIP gateway designed to connect up to 48 analog FXS ports, allowing businesses to integrate traditional analog phones and fax machines into modern IP-based communication networks. It supports seamless migration from legacy PBX systems to SIP-based VoIP platforms, maintaining call quality with its Gigabit Ethernet connectivity and offering flexible dial plans to suit various workflows. This gateway is ideal for environments that require a high density of analog endpoints while transitioning to IP telephony.

Key features

• Connects 48 analog devices such as phones, fax machines, or PBX extensions to an IP network, preserving existing hardware investments.
• Supports open SIP standards for compatibility with a wide range of IP PBXs, hosted VoIP services, and softswitch platforms.
• Enables phased migration by working alongside existing analog PBX systems, minimizing disruption during upgrades.
• Rack-mountable design fits into standard telecom or server racks, optimizing space in communication closets.
• Gigabit Ethernet port ensures sufficient bandwidth for clear and stable voice calls even under heavy network load.
• Built-in security features protect signaling and media streams from unauthorized access, enhancing communication privacy.
• Web-based provisioning and monitoring tools simplify large-scale deployments and remote management tasks.
• Backlit front panel display with multi-language support facilitates quick and accurate on-site configuration by administrators.

Key specs

• Number of FXS ports: 48
• Network interface: 1 x Gigabit Ethernet port
• Protocol support: SIP (Session Initiation Protocol)
• Form factor: Rack-mountable chassis
• Security: Advanced signaling and media encryption features
• Display: Backlit front panel with multi-language support

Connectivity and compatibility

The GXW4248 integrates smoothly with most SIP-compliant IP PBX systems and hosted VoIP platforms, making it a versatile choice for businesses upgrading their telephony infrastructure. Its 48 FXS ports allow connection of analog phones, fax machines, and legacy PBX extensions, ensuring that existing devices remain functional during and after migration. The Gigabit Ethernet port supports high-speed network connections, maintaining voice quality even in busy network environments.

Installation and setup

Designed for straightforward deployment, the gateway fits into standard 19-inch racks, saving space in communication rooms. The web-based provisioning interface allows administrators to configure dial plans, security settings, and network parameters efficiently, supporting both initial setup and ongoing management. Multi-language support on the front display helps technicians perform on-site configuration without confusion, reducing installation time and errors.

Ideal uses and environments

This gateway is well suited to organizations that rely on a large number of analog endpoints but want to benefit from IP telephony advantages. Hotels can maintain guest room phones while upgrading back-office communications. Educational institutions, healthcare facilities, and manufacturing plants can connect emergency phones, paging systems, and fax lines to a unified IP network. Call centers with analog agent sets can transition gradually without interrupting service, making the GXW4248 a practical solution for phased VoIP adoption.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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