Polo File Manager - Software for Linux
Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
FTP Synchronizer - Secure and high performance FTP File Sync product
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
xfdesktop - The xfdesktop application manages the desktop backdrop.
tSIP - tomeko.net/software: SIP client for Windows.