79 sites in VoIP
Asterisk
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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://asterisk.org
Callcentric
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Worldwide VoIP provider for business and residential customers. Free accounts and in-network calling. Per minute and unlimited rate plans. Phone numbers in US, Canada, and internationally.
http://www.callcentric.com
HarmonicaPhones.com
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VoIP & IP-based telephony service with switchboard, call routing, pbx-style features for small businesses with multiple locations. Also provides all-in-one solutions which includes office broadband service, hardware, phonesets.
http://www.harmonicaphones.com
JAJAH Inc.
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Web-activated VOIP calls between two landline or mobile phones. Paid service to connect to non-registered users, free between 2 registered users.
http://www.jajah.com/
SageVone
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Business, residential VoIP calling plans include feature bundles and PBX functionality such as call transfer, automated attendant, call center queuing, conferencing, etc.
http://www.sagevone.com
Skype
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Peer to peer internet voice service. Mac, Windows and Linux versions available. Users may call landlines and cellphones for a fee; users may call each other for free.
http://skype.com
TMCNet on the web
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Instustry trade news publisher featuring VoIP news, VoIP forum (including termination routes), call center news, CRM, telecommunications news, and self-produced VoIP tradeshows.
http://www.tmcnet.com
Vonage
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Provides voice over internet local dial-tone service. No PC required. Uses analog telephone with broadband telephone adapter.
http://vonage.com/
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See also
The category VoIPin other languages