How does Skype charge you?

Ok so I found out you can call people with Skype on PSP, but how do they charge you if you use it to call people? If I didn’t enter any details like location or anything just my email… how do they charge you? Do they charge the person your calling or what? I don’t think its possible to bill a PSP and I’m using my neighbour’s wireless connection so they must be charging from IP Address?
Answer #1
you can only call someone if you have some skype credit on your account, which you can buy from their website
Answer #2
you can only call someone if you have some skype credit on your account, which you can buy from their website
but i just called yesterday to my house and i just created an account
Answer #3
So you’re saying you made a call without logging into an account?
Answer #4
So you're saying you made a call without logging into an account?
No I mean
I made an account, and I tried calling and it worked, but how do they bill you? If I didn’t enter any information like credit card or even address and tried it on a PSP and used my neighbour’s wireless connection.
Answer #5
As far as I’m aware you get a trial. I forgot if it was like 10 free calls or like some free credit to test it out. After a certain time you’ll have to buy more credits. They don’t necessarily bill you, you just have to buy more credits.