Freewire Telephone is what's known as a Voice over Internet Protocol (VoIP) service. Instead of going down a normal phone line, your calls go through your University network or broadband connection.
You get a clearer, crisper sound quality and, more importantly, you can talk for a lot less, and even for nothing.
With Freewire Telephone you can talk as long as you want with your friends over the Internet.
Requirements:
· Intel Pentium III 1.3 GHz or equivalent (Intel Pentium 4 2.4 GHz or equivalent recommended)
· Hard drive space required: 50MB available
· 512 MB RAM
· Full-duplex, 16-bit and audio card
· Microsoft Internet Explorer 6.0 or later
Note
To use the software you need to create a free account here.