Teamtalk TeamTalk 5 is a freeware conferencing system which allows multiple users to participate in audio and video conversations. The TeamTalk install file includes both client and server application. Special client application included with accessibility features for visually impaired.
V 5.3.1 .. 17 mo
is an IRC chat program for both Linux and Windows. It allows you to join multiple IRC channels (chat rooms) at the same time, talk publicly, private one-on-one conversations etc. Even file transfers are possible.
Here a Licensed copy
is a popular SFTP client and FTP client for Microsoft Windows! Copy file between a local computer and remote servers using FTP, FTPS, SCP, SFTP, WebDAV or S3 file transfer protocols
Own Server When connected
From Official site