FreeSWITCH? So, I’ve heard that one of my coworkers was using FreeSWITCH at a previous company for the sake of their customers to access telephony over the Internet. Interestingly, I found FreeSWITCH on Wikipedia, and its initial release date is apparently before FreeSWITCH was first released. Could it be that the company he was working for developed it internally, and later released it as open-source software?
20181106/https://en.wikipedia.org/wiki/FreeSWITCH
Anyways, interesting telephony software if you want to setup your own VoIP services or the like.