VoIP part 1: How Does Work?

For anyone unsure about how Voip works I will attempt to enlighten you.

If you are unaware of VoIP, brace yourself for the way you think about your phone calls. VoIP, an abbreviation for Voice over Internet Protocol, is a way of communicating over the internet as opposed to a analogue landline phone.
How is this useful? VoIP can turn a standard Internet connection into a way to place free or very inexpensive phone calls. The practical part of this is that by utilising some of the free VoIP software that is available to make phone calls via the internet, you’re bypassing the phone company (and its charges) entirely.
VoIP is a revolutionary technology that has the potential to completely rework the world’s phone systems.
Above all else, VoIP is basically going to “reinvent the wheel.” In this article, we’ll explore the principles behind VoIP, its applications and the potential of this emerging technology, which will more than likely one day replace the traditional phone system entirely which Nvirocom can assist with.
The interesting thing about VoIP is that there is not just one way to place a call. There are three different ways of VoIP service in common use today:

ATA — The simplest and most common way is through the use of a device called an ATA (analog telephone adaptor). The ATA allows you to connect a standard phone to your computer or your Internet connection for use with VoIP. The ATA is an analog-to-digital converter. It takes the analog signal from your traditional phone and converts it into digital data for transmission over the Internet. Providers like Vonage and AT&T CallVantage are bundling ATAs free with their service. You simply crack the ATA out of the box, plug the cable from your phone that would normally go in the wall socket into the ATA, and you’re ready to make VoIP calls. Some ATAs may ship with additional software that is loaded onto the host computer to configure it; but in any case, it’s a very straightforward setup.
IP Phones — These specialized phones look just like normal phones with a handset, cradle and buttons. But instead of having the standard RJ-11 phone connectors, IP phones have an RJ-45Ethernet connector. IP phones connect directly to your router and have all the hardware and software necessary right onboard to handle the IP call. Wi-Fi phones allow subscribing callers to make VoIP calls from any Wi-Fi hot spot.
Computer-to-computer — This is certainly the easiest way to use VoIP. You don’t even have to pay for long-distance calls. There are several companies offering free or very low-cost software that you can use for this type of VoIP. All you need is the software, a microphone, speakers, a sound card and an Internet connection, preferably a fast one like you would get through a cable or DSL modem. Except for your normal monthly ISP fee, there is usually no charge for computer-to-computer calls, no matter the distance.

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