Google Talk

They say talk is cheap. Google thinks it should be free. Google Talk enables you to call or send instant messages to your friends for free–anytime, anywhere in the world. Google Talk offers you:

Choice: Get in touch how and when you want to–over email, IM or a call

Quality: Talk through your computer but hear your friends as if they were in the same room

Convenience: Your Gmail contacts are pre-loaded into Google Talk so inviting or talking to your friends is just a click away

Google Talk is in beta and requires a Gmail username and password.

By downloading, you agree to our Terms of Service and Privacy Policy
Fast download - about 3 minutes on a modem (900K)
Requires Windows XP/2000, minimum 56k (broadband recommended)
Mac and Linux users can connect to Google Talk using other IM clients

Google Talk is not a telephony service and cannot be used for emergency dialing.

Grab it here

Sounds like standard VoIP to me like skype.

By the way it is not free, the use of VoIP actually eats into ay data caps set by ISPs therefore it may not cost you money wise but it still costs. BT recently got a telling off for not letting customers know this when it was advertising it’s VoIP service.

For the l33t crowd Google Talk uses Jabber with SSL (you can run it just fine in Miranda IM like everything else) :stuck_out_tongue:
Voice is supposed to be SiP.

It would be nice if Google could do for instant messaging what it has done for email.