Oh I once rang my friend, on skype, from australia ...to his mobile phone in houston...he was in an office building, I talked to him for 45 mins, as he went home....never dropped out once....going down the elevator, into the car park, then into the car phone holder....8)....it was amazing...
45 mins...and cost me 3cents australian a minute...so the whole call was like 1.25 or something...8)...insane.
and the quality, is better than when I call using a land line...
we use skype here in oz...for all our local and interstate calls...
cheers
Wiz