EnGenius DURAFONPRO-BU

Overview

The EnGenius DURAFONPRO-BU is a base unit for a long-range multi-line expandable cordless phone system designed to deliver reliable voice coverage over vast areas. It supports up to four separate phone lines and integrates seamlessly with PBX, VoIP, PSTN, FXS, or standard POTS services, making it adaptable to a wide range of telephone infrastructures. This base unit provides coverage inside buildings up to 250,000 square feet, penetrates through as many as 12 concrete or steel-reinforced floors, and extends voice communication across 3,000 acres outdoors, ensuring staff can stay connected across large facilities without interruption.

Key features

• Supports up to four phone lines and registers as many as 90 handsets per base station, allowing extensive user connectivity.
• Expands coverage to 250,000 square feet indoors and up to 3,000 acres outdoors, maintaining clear communication across large and complex environments.
• Compatible with multiple telephone systems including PBX, VoIP, PSTN, FXS, and POTS, providing flexibility for various setups.
• Allows addition of up to seven more base units to create a network supporting up to 32 phone lines, enabling easy scaling as your operation grows.
• Rugged housing designed to withstand dust, temperature changes, and physical impacts common in industrial and commercial settings.
• Simple installation process that involves mounting near phone lines or PBX and registering handsets, minimizing setup time and complexity.

Key specs

• Phone lines supported: 4 per base unit
• Handset capacity: up to 90 per base unit
• Indoor coverage: up to 250,000 square feet or 12 floors
• Outdoor coverage: up to 3,000 acres
• Expandable base units: up to 8 total (1 original + 7 additional)
• Total phone lines with expansion: up to 32
• Compatible telephone systems: PBX, VoIP, PSTN, FXS, POTS

Connectivity and compatibility

This base unit connects directly to existing telephone infrastructures, supporting a variety of systems to fit your current setup without requiring major changes. Whether your facility uses traditional POTS lines, VoIP services, or a PBX system, the DURAFONPRO-BU integrates smoothly to provide consistent voice communication.

• Supports PBX systems for enterprise telephony management
• Compatible with VoIP for modern internet-based calling
• Works with PSTN and FXS lines for traditional telephony
• Connects to standard POTS lines for basic phone service

Ideal uses and environments

The DURAFONPRO-BU is well suited to large industrial, commercial, and agricultural environments where wide coverage and reliable communication are critical. It fits well in manufacturing plants, warehouses, distribution centers, farms, and large retail spaces where staff need to stay connected across multiple floors, buildings, or outdoor areas. Its rugged design ensures durability in harsh conditions, making it a strong choice for facilities with demanding operational needs.

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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