I don't know how they do it but it works great.
Get Reaper (which is a DAW/music creator program and is free to try). Then get NINJAM
Set that all up with your recording set up and you can jam with up to 6 people from anywhere in the world.
http://www.ninjam.com/index.php
http://www.cockos.com/reaper/
http://forum.cockos.com/showthread.php?t=12578
Get Reaper (which is a DAW/music creator program and is free to try). Then get NINJAM
Set that all up with your recording set up and you can jam with up to 6 people from anywhere in the world.
http://www.ninjam.com/index.php
http://www.cockos.com/reaper/
http://forum.cockos.com/showthread.php?t=12578