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It looks hard to believe but it's true. You can now make internet phone calls that are free or cost next to zero. That is possible because of the development of technology - namely, the Internet. First, let's see how making phone calls on the Internet possible. The Internet transfers data using the Internet protocol (IP). All data, in its digital format are transferred from one location to another either via wires and cables, or over a wireless link. Data that is transferred over the Internet is broken down into packets. Any attempt to send or receive data on the Internet is an attempt to send or receive these packets. A high speed connection means that you are able to send and receive packets smoothly and quickly without problems. Though, occasionally we may get a flaky connection. That means packets are lost in the transfer. Some data that we are meant to receive or some data that we sent is lost. Fortunately, as the Internet interconnection all over world improves, this is very rare. To connect to the Internet, you will need a modem and a router. The modem allows you to connect to an internet provider. A router is necessary because it let the network to authenticate you, so that you can send and receive data packets. Without it, the packets wouldn't know where to go. Obviously, to make an internet phone call, you need to connect to Internet. That means you should be plugged in with the equipment mentioned above. Your personal computer or laptop can be connected to the Internet with a LAN (local area network) cable, or a wireless adapter (if you have a wireless router). Once you are connected to the Internet, you will need some special software. This program can be easily obtained from your Internet phone service provider, or downloaded for free from the Internet. Good example of such a software is X-Lite. Or, if you don’t wish to use your computer and program, you can get a special piece of equipment commonly known as the VoIP adapter (e.g. Snom). This adapter is plugged into your router, and you should be able to use it like a normal telephone. With the special hardware or software installed, you can make and receive local or international phone calls. Commonly, if you are calling someone on the same network as you, you do not have to pay a single cent. You only charged when making a telephone call to somebody who is on a different VoIP network, or when connecting to a land line. Even then, the fees incurred are noticeably lower than regular international phone calls made via land lines. Internet phone calls can be free or dirt cheap as transferring data over the Internet is cheap. As the quality continues to improve, the cost of high speed Internet connections become cheaper. For the consumer point of view, this is great news because now, consumers have other alternatives to choose from when making international phone calls. Extensive competition has also driven prices down. All in all, these factors have contributed to making internet phone calls free, or highly affordable.
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