How do VoIP services connect to landlines?

Posted by henry on Stack Overflow See other posts from Stack Overflow or by henry
Published on 2009-04-23T13:25:41Z Indexed on 2010/05/28 2:51 UTC
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server

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voip

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infrastructure

How do VoIP services, such as Skype and Yahoo, connect to landlines?

We have a server connected to a landline using asterisk, so I'm thinking this server will bridge our VoIP conversation and connect it to a landline.

But if this is the case, wouldn't Skype need a lot of servers placed around the whole world just to connect to landlines?

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