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Asterisk
An open source telephony switching and private branch exchange service. Allows peer-peer calling using a variety of voice over internet protocols.
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Asylum Telecom
VoIP provider for business and residential customers. No service charges.
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BroadVoice
VoIP provider offers full feature set with voice mail, caller ID, etc. Requires supplied broadband phone adapter.
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CallDaddy
Pre-paid VOIP services. H.323 IP phone, gateway, gatekeeper, NetMeeting or any other H.323 compliant terminal necessary.
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Calleveryone.com
A full featured VoIP/broadband phone to phone service primarily for calls within the US.
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Callserve
PC-to-Phone service for outbound calls only. Software download required.
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Dial2Home
VoIP service for phone-to-phone with adapter or peer-to-peer.
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Dialpad Communications, Inc.
Offers monthly billing and pre-paid PC-to-Phone VoIP services. Also supports broadband telephone adapter for use without PC.
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Dow Networks
Provides Voice over IP and telecom service to international clients.
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Efonica
Prepaid system for PC-to-phone and web initiated phone-to-phone using VoIP.
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Free World Dialup
Community network allowing calls to toll free numbers in the US, Japan, UK and Netherlands. Peer-peer calling to other members.
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iConnectHere
Offers VoIP-based PC-to-Phone, Broadband Phone and Calling Card services.
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IPCB.net
Softswitch services such as routing, billing as well as VoIP call termination.
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ISPhone Inc.
Wholesale voice over internet services.
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MeaPhone
PC to phone service based in Thailand. Software download required.
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Mywebcalls
PC-Phone or device-to-phone United Kingdom based service.
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On Instant
PC-to-PC only isntant messaging service with VoIP features including live voice, voicemail and CRM tools.
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One Unified Net
A communications infrastructure provider includes IP systems, services, softswitches, and phones.
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Packet8
Voice over internet direct dial service without a PC. Owned by 8X8, Inc.
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PC2call
PC-phone internet voice service provider based in the United Kingdom.
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Redshift Networks
Operates and builds international carrier networks using VoIP and TDM circuit transmission technologies.
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RhinoBell
PC to phone, phone to phone using device, voice over internet calls.
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SIPphone Inc.
Peer-peer calling service. Requires SIP adaptor and phone.
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Skype
Peer to peer internet voice service. Requires PC for both callers.
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Super Technologies, Inc
Offers flat-rate unlimited calling within USA & Canada. Uses analog telephone handsets via broadband telephone adapter.
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Talafone
Canadian based provider of PC-to-phone and IP phone services and hardware.
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v59
Use dial-up and talk everywhere with our VoIP service
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Vinculum Communications
VoIP wholesale international termination services provider.
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VocalNet
VoIP provider offering residential and business plans.
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Vodawave
Residential and enterprise VoIP plans plus gateways, gatekeeper and billing software.
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