3.5
An introduction to VoIP
4.9
Free softphone application
3
SIP tester is a free VoIP load testing tool to check SIP hardware or software
3.3
Cost-Effective Online Calling Software for International Needs
4.2
Make free phone calls with your computer
4.1
Social & Communication
PC to PC calling and videoconferencing made easy
3.4
Virtual telephone compatible with most VOIP services
Old-fashioned and out-dated instant messaging platform
Anti DDoS Guardian prevents DDoS, brute force, bandwidth and other attacks.
2.7
A virtual bridge to transfer audio files between apps
Your site to talk with friends and communities
3.9
LINE - A freeware instant messaging application
Free VoIP app with SMS
4.3
A simple but feature-packed communication tool
IM client, VoIP and Video Conferencing in one package
Free messenger and VoIP for Windows