sharpVoice is a internet telephony program that enables free PC-to-PC and inexpensive PC-to-Telephone voice conference calls even with slow internet connections.
Version: 6.0sharpVoice (formerly CyberTalkOnline) is a mature, reliable internet telephony program that enables free PC-to-PC and inexpensive PC-to-Telephone voice conference calls. sharpVoice Version 6.0 offers great sound quality even over slow internet connections and the ability to conduct multi-person conference calls without a conferencing server.
License: Free To Try $29.99
Operating System: Windows
A simple Instant Messenger-like buddy list and easy-to-use interface makes placing calls easy. Network-friendly design lets you make and receive calls even if you use a firewall or proxy server. Record and playback conversations. Fully functional and ad-free for 30 days.
Then you must register to make multi-person conference calls, PC-to-Phone calls, and to avoid advertising. Contains no SpyWare.