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An open source telephony switching and private branch exchange service. Allows peer-peer calling using a variety of voice over internet protocols.
http://www.asterisk.org
PageRank: Not available
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VoIP provider for business and residential customers. No service charges.
http://www.asylumtel.com
PageRank: Not available
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VoIP provider offers full feature set with voice mail, caller ID, etc. Requires supplied broadband phone adapter.
http://www.broadvoice.com/
PageRank: Not available
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Pre-paid VOIP services. H.323 IP phone, gateway, gatekeeper, NetMeeting or any other H.323 compliant terminal necessary.
http://www.calldaddy.com
PageRank: Not available
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A full featured VoIP/broadband phone to phone service primarily for calls within the US.
http://www.calleveryone.com
PageRank: Not available
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