CyberTalkOnline's PcTalk is a very powerful and simple internet telephony utility that enables PC to PC voice calls. It enables any Internet user with a sound-equipped PC to initiate calls from a computer and transmit them over the Internet to any other computer. The result is real-time, uninterrupted, full-duplex voice communication between two parties. The simple user interface and high audio quality makes the difference. You can make free PC-to-PC calls to other CyberTalkOnline users anywhere in the world while they are online. Talk to them as long as you want. No time restrictions. Internet telephony technology allows you to make free calls to anywhere in the world.