Elastix is described as 'More than a PBX, with Elastix you can communicate with your customers through voice, video and live chat from anywhere. Built-in video conferencing, website live chat and smartphone apps, ensure your agents remain productive through one unified mobile solution' and is a IP PBX system in the social & communications category. There are more than 25 alternatives to Elastix for a variety of platforms, including Linux, Mac, Windows, Web-based and Android apps. The best Elastix alternative is Asterisk, which is both free and Open Source. Other great apps like Elastix are 3CX, Issabel, FreePBX and RingCentral.