Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
WebDrive - WebDrive File Access Client allows you to open and edit server-based files without the additional step of downloading the file.
tSIP - tomeko.net/software: SIP client for Windows.
Air Explorer - Air Explorer is a software to manage all your multiple cloud drives (like Dropbox, Onedrive, Google Drive, Mega, Mediafire, Box, Hidrive, Yandex, Baidu,...) as well as WebDav and FTP connections.
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.