Check out Internet Party Line!! Also known as Iparty!
Iparty is free, has real chatrooms, not just one on one chat. Never skips
or breaks up the sound like other voice chats.
You can get more information on Iparty and download the totally free
software at:
http://web.infoave.net/~chmarshall/ipartyindex.htm
This software is FREE!! No jokes about it. And I invite you to virus scan
it, this is real no virii stuff that works great!! So GET IT!!! ;o)