CorvisaOne - CorvisaOne is another cloud-based communications suite that is specially designed for companies that need features for managing inbound or outbound call centres.
FluffyChat - Open. Nonprofit. Cute ?
Amp Telecom - Amp Telecom is a powerful all-in-one cloud-based business Voice Over IP and calling platform for any kind of midsize and large enterprises that comes with crystal clear calling, 24/7 reliability and can help you save more than 60% off your monthly p…
Olvid - The most secure messaging app in the world.
8x8 X Series - X Series connects teams across channels and around the globe, giving you access your most critical information securely, from any location.
Molly (Signal fork) - Molly is an independent Signal fork for Android