What are the different kinds of VoIP service?
Computer-to-computer: This is most pervasive form of VoIP today. This type of call connects two computers equipped with headsets or similar peripherals. Some examples are Microsoft Windows Messenger, Skype and Free World Dialup. This approach can be a terrific solution, especially if access to the PSTN is not required. Startup and ongoing service cost is usually very low or free. Computer-to-phone: Similar to Computer-to-Computer, but with the added ability to call from the computer to PSTN phone numbers. This is a popular solution for saving money on International calls, since providers are often able to provide very advantageous rates. As with computer-to-computer, startup cost is very low or free. Ongoing service can vary depending on features and usage. One popular provider of this type of service is GloPhone. Phone-to-Phone: This type of service uses a hardware adaptor to connect a traditional telephone to a VoIP network, which is in turn connected to the PSTN. This service offers
