[H] Google voice calls

[Winterlight]

Has anybody initiated calls yet from their Google voice account. I am 
a little confused here. You can't make calls directly from your 
computer with a mic/headphone setup..right? So you tell it to call a 
number, and then it calls you at the number you have set it up for 
once it has made the connection..  for example., I tell Google Voice 
to call a long distance number.... then it calls me on my Verizon 
Land line as a local call once it makes the connection .. is that how 
it works? thanks