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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.
| Asylum Telecom
VoIP provider for business and residential customers. No service charges.
VoIP provider offers full feature set with voice mail, caller ID, etc. Requires supplied broadband phone adapter.
Pre-paid VOIP services. H.323 IP phone, gateway, gatekeeper, NetMeeting or any other H.323 compliant terminal necessary.
A full featured VoIP/broadband phone to phone service primarily for calls within the US.
PC-to-Phone service for outbound calls only. Software download required.
VoIP service for phone-to-phone with adapter or peer-to-peer.
| Dialpad Communications, Inc.
Offers monthly billing and pre-paid PC-to-Phone VoIP services. Also supports broadband telephone adapter for use without PC.
| Dow Networks
Provides Voice over IP and telecom service to international clients.
Prepaid system for PC-to-phone and web initiated phone-to-phone using VoIP.
| Free World Dialup
Community network allowing calls to toll free numbers in the US, Japan, UK and Netherlands. Peer-peer calling to other members.
Offers VoIP-based PC-to-Phone, Broadband Phone and Calling Card services.
Softswitch services such as routing, billing as well as VoIP call termination.
| ISPhone Inc.
Wholesale voice over internet services.
PC to phone service based in Thailand. Software download required.
PC-Phone or device-to-phone United Kingdom based service.
| On Instant
PC-to-PC only isntant messaging service with VoIP features including live voice, voicemail and CRM tools.
| One Unified Net
A communications infrastructure provider includes IP systems, services, softswitches, and phones.
Voice over internet direct dial service without a PC. Owned by 8X8, Inc.
PC-phone internet voice service provider based in the United Kingdom.