Exchange secure instant messages through LAN and over the Internet.
Secure messaging in an enterprise network. A local server that is under your full control. Voice and video calls. Kanban board for task and project management. Group and private conversations with an ability to share files of any size. Intranet forum.
Set up safe, heavy mails system with Web-client access and LAN or WAN self-hosted server.
Manage phone calls in a business or call center environment with virtual IP PBX software.
Talk with friends and family for free over the Internet.