The Elastix NLX4000 is a unified communications server designed to deliver IP PBX to medium and large businesses. It supports both hardware VoIP phones and softphones.
The equipment has a 1.5U design. This means that it is 1.5 times as tall as a standard 19-inch server rack. It is 2.64 inches tall, 17.32 inches wide and 14.65 inches long, and it weighs 9.5 pounds. The NLX4000 comes in an orange chassis with Elastix branding. It has an LCD display on its front panel as well as a removable hard drive bay. The bay houses a 2.5-inch 500GB SATA hard drive, but you can also add a second 500GB hard drive in a RAID 1 configuration.
This PBX system runs a dual-core processor clocked at 1.86GHz and packs 4GB DDR3 RAM. It has two USB ports, two Gigabit Ethernet network interfaces, up to 48 FXO and FXS analog ports to connect to POTS and PSTN networks, and up to four T1 ports. It supports up to 300 phones and up to 120 concurrent calls. In addition to providing hard drive redundancy, the Elastix NLX4000 has an optional redundant power supply to keep the equipment going in the event of primary power failure.
The NLX4000 runs the 32-bit version of the Elastix PBX operating system, but it is also compatible with the 64-bit version of the software. Elastix is Asterisk-based PBX software and, like Asterisk, free open-source software. This software makes it possible to integrate multiple telephony systems with the Elastix NLX4000. It also enables advanced PBX features such as call forwarding, least-cost routing, extension roaming, voicemail and virtual conference rooms. In all, the NLX4000 provides over 100 basic and advanced PBX configurations. You can add new features and extend the functionality of the PBX equipment with third-party software. There are over 30 such programs in the Elastix add-ons marketplace.
The free and open-source operating system of the Elastix NLX4000 is its major strength and flaw. On one hand, it reduces the cost of the PBX equipment and allows you to build features tailored to your organization's specific needs. However, the hidden cost of this open-source software is its third-party add-on program. Third-party add-ons offer desirable features not provided by Elastix and are usually not free. In addition, lack of long-term support for third-party add-ons may make it hard to successfully implement the advanced PBX features they promise.
The Elastix NLX4000 is an enterprise-grade telephony solution that consolidates analog and digital phone lines. However, its heavy reliance on third-party software can quickly make it a costly PBX solution.
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