What is VoIP?

VoIP (voice-over-internet-protocol) – a system of communication in which the analog audio signal from one encoded in a digital subscriber type, and kompressing transmitted in digital channels to the second subscriber where the inverse operation – decompression, decoding and playback analog signal .

Technology transfer through a network with voice packet communication was first implemented in 1993 and was named Voice over IP, or VoIP. Private annex of the technology is the IP telephony – the transfer of telephone calls via the Internet at the IP protocol.

This communication system has both advantages and disadvantages. To begin with, let us look at some advantages that you get when using the transfer of voice messages on the IP protocol.

Flexibility – the main benefit received from the IP telephony. You can make their calls either directly from your computer or from a special phone. According to the protocol interconnectivity you can call from anywhere, wherever you are at this time, if only at your fingertips, and the computer was connected to the Internet or a special phone. Now such a call can be made even with the mobile phone.

One of the benefits of IP telephony is that many suppliers of IP telephony providing their services free of charge, which means: the share of bills for long distance and international calls!

Of course, not every vendor offers this service free of charge. For example, some offer free local calls, but low pricing for long distance or international calls. Others may establish a firm fee for the month, but that offer unlimited calls in either direction.

Using the IP telephony you can hold a teleconference with a few subscribers, it is very convenient for business, because The employee always desired number. In theory, with a good Internet connection, a sound fee and a headset, you probably do not even need to distance phone line.

Of course, there are some drawbacks VoIP. For example, you can use such a context, only with the computer, Internet connection and a headset or a special phone. In this connection, you need to install the software. However, the big advantages of VoIP far outweigh its minor flaws.