FreeSWITCH can be installed on almost anything, which is good for testing, developing, and opens up a wealth of different use cases (think embedded systems and Internet of Things).

For production systems and, particularly for mission-critical systems (think the PBX of your company, or a taxi dispatching service, or your hot startup WebRTC-enabled commercial videoconferencing-cum-translation service), you have three choices: use the platforms we counsel (the most tried and true), or know exactly what you're doing (hint: it is impossible you know so much about FreeSWITCH internals), or ask for a qualified consultancy. That's important not only to save on time, money, efforts, and frustrations, but so much more for the ongoing support, bug fixing, features upgrade, and platform evolution.