By being very easy to configure and manage, the 3CX Phone System for Windows scores well on functionality and is compatible with most SIP handsets, gateways and services. However scalability could be an issue for larger organisations.
In many ways the 3CX Phone System for Windows is much like other IP telephony solutions in that it enables companies to replace a conventional PBX with equipment to make and receive calls using VoIP (Voice over IP). In others, however, it’s quite different, with a number of unique features that really do make it stand out.
The most obvious difference is that all you get from 3CX (or its distributor Zen Software) is software, designed to run on industry-standard PC hardware rather than the custom switches and other appliances that come with products from companies such as Cisco, Avaya, Nortel and others. By itself, that’s nothing new as there are plenty of other software-based PBX products available -- including the popular open-source Asterisk package. Most of those, however, are written for Linux, whereas 3CX can be deployed on Windows -- even XP or Vista for small setups. Furthermore, the preferred method of connecting to the public telephone network is via independent or hosted SIP gateways, so 3CX's software can even be run on a virtual machine, if required.
Another differentiator is the availability of a free version, as well as three more scalable commercial implementations. All can be configured to handle an unlimited number of extensions, but the free version is limited to eight simultaneous calls, as is the Small Business edition (from A$591 including GST). The Pro edition (from A$1188 including GST) can process up to 16 simultaneous calls, while the Enterprise edition offers 32 for A$1786 (including GST), upgradeable to 128 in total. The commercial versions also offer additional functionality including Microsoft Exchange integration, call recording and automatic handset provisioning, connectivity with CRM and ERP applications, plus a web portal to enable users to manage their own settings.
The 3CX PBX can connect to the PSTN via hosted SIP services and SIP trunks.
The software itself comprises a number of components, including an Apache web server and a PostgreSQL database server installed by the integrated setup routine, along with background servers to look after call routing, voicemail and other tasks. Installation is quick and easy: it took us around five minutes on a virtual machine, and we had no problems getting it working even though the components involved are far from standard Windows applications. That’s mostly down to the browser-based management console, which features wizards and templates to help you configure the product and an intuitive interface for day-to-day administration.
Adds, moves and changes are easy using the 3CX software.
Naturally you’ll need IP-enabled handsets to make and receive calls, but you can use any SIP-compatible phone or adapters to convert ordinary analogue/digital handsets to work with VoIP. These can be difficult to configure, so it was good to find detailed instructions provided on how to configure 3CX to use handsets from leading vendors such as Grandstream, Linksys and Snom. SIP softphones, such as X-Lite, can also be used, and a free 3CX softphone is included with all versions, although its functionality is limited in the free download.
A softphone application is included with the 3CX software, but you'll need a commercial license to access all of its features.
Defining a new extension takes just a couple of minutes -- seconds once you’ve setup the defaults you want. Indeed, it took less than half an hour to configure our test PBX to make and receive calls between extensions, forward and transfer calls and so on. Changing or deleting users is straightforward and hot-desking a standard feature, with users able to log into their extension from any handset or softphone with a PIN code for authentication -- even when teleworking.
An easy-to-configure Interactive Voice Response (IVR) facility is a standard option.
Of course you'll want to do more than just make internal calls so, having defined the extensions, the next task is to connect the PBX to the public switched telephone network (PSTN). Unlike a lot of other products, the 3CX software doesn’t include a PSTN gateway of its own, relying instead on third-party gateways, typically implemented as external appliances. These can be had with either ordinary phone or ISDN interfaces and can be difficult to configure, although templates for use with products from vendors such as Mediatrix, Linksys and others are, again, provided to help.
Alternatively it’s possible to connect to the PSTN via hosted SIP services, using the internet rather than having to rent lots of phone lines. Support for SIP trunks is also available in the latest version, along with a new 3CX-to-3CX bridge for branch office communications.
Extensions can be grouped together into hunt and other calling groups.
Turn over to see our verdict.
I tried this product. Compare to asterisk and hardware PBXes this system has a bad latency. For home use it is OK but for professional use it is not usable
The good: cheap
The bad: latency, resource hungry, installs lots of packages such as apache without asking, uses open source code (bad for a commercial company)