I see a lot of wholesale and business SIP origination and termination carriers on the voip-info web site at:
http://www.voip-info.org/wiki/view/VOIP+Service+Providers+Business+North +America The list seems to be growing daily. Do people actually make money doing this? I would have thought that the profit margins on carrying minutes would have been measured in fractions of a cent. I'm a little curious how people cut a profit unless they are passing millions of minutes per month. If they are, I wonder how they get business when there are so many out there doing it. Do these companies just resell other people's networks, like Level 3? Do they build their own term/orig POP's in datacenters around the world and use the public Internet to route calls, or do they build private networks? Both must be expensive. Once again, I'm curious how they can cut a profit??? Doug.
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