To make a call through a PC was an excellent way in making free calls; but calling through PC also has its problem. First of all, people that you would like to communicate too should be connected to the internet as well. Secondly, the person must use similar type of online telephone software. And finally, when you are not using a broadband internet connection, the call surely will have many problems. To have said that if you will be able to establish a PC Connection, the free calls in telephones are rewarding.
What are the requirements?
It depends on the software type that you like using. You will be able to have a PC-to-PC call with everyone who is using the similar application. You may select among the many services online in order to link up in PC to PC calls, however, you need a microphone and speakers for the system so it functions properly.
Regardless of what software you are using, it is common that they operate in a similar manner. You must download that software, then install that to the computer and then search for, ask or add another friend or family member. Be sure that the microphone and speakers are functioning properly, then just click the name of your contact in order to call him or her. The software mentioned here is a softphone.
There are still some additional features dependent on the type of software you are using. Calling through videos, for example, needs to have a webcam as well as speakers, microphone and headset. There is also an application that enable video conference calling, which includes talking face to face with 10 or more people in a group if they are using an Intel Duo Core processor. But if you want a telephone number that rings on your computer, then there are VoIP companies giving such services if you look around.