Some benefits of the use of VoIP technology application technology of sent IP voice, economic application and high profitability, can facilitate tasks that would be much more difficult to perform using common telephone networks. And this happens, both at the level of large corporations, small businesses and even for private use. For example, their high mobility allows that, in case of travel and take I get a voice over IP phone, anywhere with Internet connectivity, could receive calls, because that local calls can be automatically routed to a telephone to href = > IP voice, no matter at which point of the balloon is connected to the network, and what is even more important, at the cost of a local call. If you own a company that provides telephone support to customers of any type of service-, you can avoid a great investment, necessary in physical infrastructure. In terms of costs, it means large sums of money. By using the use of the voice IP, call center agents can work anywhere, while it has a good connection to the Internet, which is also fast enough, even from their homes. Voice over IP is cheaper international communications and therefore improving the quality of communication between providers and clients, or between cells of the same company scattered around the world. Likewise, voice over IP technology is being offered as part of some web portals, offering it through certain applications for specific support. This allows the users of those portals request a call by voice over IP, in a fast, effective manner and with the double benefit of being free to the caller and also to the one who receives the call.