Have Asterisk Server but how do I get a phone number?

I installed the Asterisk Server and can use the web based interface but I have no idea how to get a phone number for the server. Do I have to buy one?

psychoguy42

Yes, although, in some countries it may be possible to get ones that are funded by the caller. You will generally have to pay for outgoing access.

Use a VoIP provider for start.