Hi, directly from the discord.com mainpage: "All-in-one voice and text chat that's free, secure, and works on both your desktop and phone. Stop paying for TeamSpeak servers and hassling with Skype. Simplify your life."

It simply replaces the Ubiq Slack Channel ( http://slack.ubiqsmart.com/ ) because of some "limitations"
More details here: https://medium.com/the-ubiq-report/the-problem-with-slack-99b91e68a1fb

Sign up to Ubiq Discord here: https://discord.gg/HF6vEGF <-> Link copied from the other Slack Link above

hth