Free VoIP phone calls - VoIP technology is explained in more detail

VoIP breaks through the invention, which allows you to make free or very cheap local, long distance and international calls. You may have a few questions in my head, for example, how VoIP works, what are the advantages of VoIP.

VoIP relationship with computers and networks.

VoIP allows you to repeal the present and begin to learn about computer networks, you may have heard of computers, networks, switches and wireless networks. Computers communicate with each other via copper wires, fiber optic cables and wireless spectrum waves. Computer communication takes place in the data form. For example, if you send something via email that the message is converted into data packets that are transmitted through computers, switches and routers in the network and the packets arrive at its destination, they re-convert back to the e-mail. This entire process takes less than a few milliseconds to complete. Here's how the computer network.

VoIP is very similar to computer data transmission in nature, so it is important that you understand how computer data network.

How VoIP works, and how VoIP calls transmitted data networks?

Now, as we discovered, as a computer data network functions, making it easier for us to understand how VoIP works. VoIP stands for (Voice over Internet Protocol) VoIP calls to feel and sound different than a standard PSTN call. The only difference is that VoIP calls are transmitted over computer data networks, rather than the public switched telephone network exchange.

When we have a VoIP phone calls communications channel between the caller and the called party via an IP (Internet Protocol), which runs on a computer data networks. Telephone interview is conducted via VoIP are converted into binary data streams in real-time packets and transmitted over a data network when the packets reach the destination, it is converted back to a standard phone call. Converting voice into data transfer and data conversion back to a voice call this whole process takes place in less than a few milliseconds. Here's how VoIP calls work over data networks. I hope that you now understand the basics of VoIP calls going on.

What is a speech codec and the codec to play the role of VoIP?

Speech codec, play an important role in the VoIP codec and provides call quality and price. Let me explain what exactly is VoIP codecs and how they work. You may have heard about data compression, or, most likely you have heard about the air compressor, which compresses the air volume in a closed container, the VoIP codec is different than an air compressor. Speech codec compresses voice into data packets, and expands upon arrival at the destination. Some VoIP codec can compress a great voice while maintaining the QoS, which means that the codec type to use will cost less because it uses only part of the network. Some codecs are not just a great voice coding, they just consume huge bandwidth for data transmission networks, so the price goes up.