Viral Loops - Viral Loops is a viral and referral marketing platform to launch ranking competitions, sweepstakes, pre-launch and referral programs.
Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Yotpo - Yotpo is the smartest way to generate customer content, drive traffic and increase conversions.
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
Swagbucks - Swagbucks is a loyalty program that offers individuals rewards for engaging in various activities. Users can earn reward points for performing Internet searches, purchasing items from affiliated vendors, or completing polls.
tSIP - tomeko.net/software: SIP client for Windows.