3.5
An introduction to VoIP
4.1
Free VoIP app with SMS
Your site to talk with friends and communities
3.9
Free messenger and VoIP for Windows
4.9
Free softphone application
LINE - A freeware instant messaging application
4.3
A simple but feature-packed communication tool
Record any audio effortlessly
3.8
Free VoIP Software for Personal Computers
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
Social & Communication
4.2
Make free phone calls with your computer
3.4
Call your online friends for free
Premium private communication platform
Simple, fast and secure desktop sharing
4.4
Free, open-source private messenger