Most Internet users might have made free phone calls or video chat to another computer using application such as Google Talk. Such calls where two personal computers are at each end are possible by following Voice over Internet Protocol to transfer voice data through internet in terms of packets. By use of a software application customized/developed by your service provider, you can consider your PC as telephone.

Although PC to PC calls are free, PC to phone calls are made very cheap with the help of internet compared to normal Phone to Phone calls. You may be puzzled about the reason behind allowing calls between two personal computers for free. One’s natural thought would be to think that since we pay our internet provider either monthly or usage based, we tend to think that the internet is all theirs. It is humanly impossible to own such a big network of interconnected computers. Care to be noted that the service providers only lay the connections to interconnect networks but websites with their content are owned by individual members or organizations. This is done for the common man to access the multitude information available to him via Internet. Say for example you want to access a website, you need to be on the network which your provider builds for which he would charge you for the usage in order to recover his network building costs and make profits. Basically, you are not paying for the internet but you are paying to be on the network of computers. Once you are on the network, you can make connections to any computer/server and let the data transfer happen which in the present case is voice.

Hence, PC to PC calls will always be free but to make communication to a normal phone from a PC requires a telephone network to be connected to your VoIP service provider and access to those phone networks is also needed because of the minimum charge levied for a call from PC to a phone. There are however few VoIP service providers that provide trial calls for free. On such example is Tuitalk, but these calls serve little purpose as there is a time limit to duration of free calls you can make. Absolutely free PC to phone calls with no limits is possible if the market grows large enough along with competition among the VoIP service providers.

Unlimited PC to phone free calls are possible but are not provided by any service provider as yet but it is going to come in the near future. PC to phone calls are going to be very useful for offices to cut down their costs and run their businesses more efficiently.