Do you want to make phone calls from your own computer to other PCs and get them for free? PhonerLite is a free utility (quite similar to the popular Skype), which will allow you to make phone calls from your computer to the computers of your contacts without costing you anything, for this you only need a microphone and a full duplex sound card.
To be able to use PhonerLite you simply have to register from the program itself to an ISP provider and from that moment you can already call the IPs of your contacts' computers (VOIP) from your device, and vice versa, keeping a history of all the calls made or received, and the data associated with each of them.
You can free download PhonerLite 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.