VoIP or Voice over Internet Protocol has been around for more than a decade now. It was way back during the 1990s, when a company called Vocaltec released PC to PC VoIP software in the year 1995. All you required was a sound card, modem, microphone, and speakers. In this kind of arrangement the so called voice signals were compressed after which these signals were translated to voice packets and transmitted over Internet.
Usefulness of VoIP
One of the greatest advantages of VoIP technology is the standard internet connectivity can be used to make free calls over the Internet. Another advantage is that by making use of these free phone calls, you don’t have to pay the telephone company as you are avoiding them. VoIP has changed the way in which we communicate over the Internet. Such has been the popularity of the technology that several technology giants are opting for this technology for their daily telecommunication usage.
One of the most prominent and most sought after service providers in this field is Vonage. It has evolved over the years and has grown to be a giant in this industry. There are several other eminent service providers that are following suit, AT&T being one of them.
In the following paragraphs, we will discuss about the main principles on which this technology works. So, read on for more information.
Basically, there are 3 types of VoIP services in use these days. Details of these 3 types are given below.
1) Computer-to-computer – In this type of VoIP, you don’t have to pay for a call and this is perhaps the simplest way to make use of this technology. The best way to use this technology is to make use of software available in the market. These software programs are not expensive. You need a sound card, internet connectivity, speakers, and microphone. The only expense that you have to incur is the cost of Internet Service Provider. Regardless of the distance that you are calling up, you don’t have to shell out anything extra excluding the ISP charge.
2) IP Phones – The IP Phones are equipped with RJ-45 Ethernet connector and not the RJ-11 connectors that are used by the standard phones. Although these phones resemble the normal phones the only difference is the connector. These phones connect directly to the router.
3) ATA – The Analog Telephone Adaptor is perhaps the most simplest and common device in the VoIP category. This type of VoIP permits you to connect a normal telephone to the internet and thereafter you can make use of the VoIP technology to make telephone calls. Being the much acclaimed “analog to digital” converter, digital data is obtained after the analog signals are converted into the digital format, which are then transmitted over the Internet. In order to enjoy these services, you can sign up for the services offered by Vonage and AT&T. There are several plans associated with the VoIP and you can select one according to your requirement. You will also come across few schemes that are available for free.