VOIP

VOIP

1. Voip is a group of internet protocols which provide a means of sending voice and multimedia communication over the internet rather than by public telephone networks. Real time communication has become more and more common , with communication by VoIP growing in popularity.

2. Any computer which has microphone input , speaker or headphone output and a broadband connection can be used to trabsmit and recieve voice communication using this system.

3. The addition of a webcam will allow multimedia transmission (the simultaneous transmission of video and audio) When many users have these facilities, web meetings and conferences can be set up.

4. The software required to run a VoIP system consists mainly of an encoding and decoding program, which is often called a coder/decoder program (codec) This program is used, where necessary, to digitise an analogue voice signal, then compress it and split it into internet packets for transmission. It then performs the reverse at the recieving end.

5. VoIP is not ony available over desktop and laptop computers, but also over many other internet devices such as smartphones. One of the most popular VoIP systems in use at present is skype.