Voice Over IP Technology Surges Forward

It may surprise you to learn that the core technology behind phones did not change until recently and even the phones you use now may look different from the original phones but the underlying mechanism is essentially identical: a microphone on each side of the call turns the voice signal into a changing electrical current which is sent over the phone line and then used to reproduce the voice on the other end of the phone with a small speaker.

New technology called Voice Over Internet Protocol means that the voice is digitally sampled at the phone, turned into small "packs" of data that look much like packets containing other things like webpages or downloaded MP3s and sent over the Internet. The other end of the call receives these packs and reconcribes them back into a sound signal that we can hear.

This may not sound like an important development, … Read More