How does a PC-to-phone call work?

How does a PC-to-phone call work?

Jim Gurol (VP of Operations, Tierzero) gives expert video advice on: What is PC-to-phone VoIP?; What is the 'softphone' used in PC-to-phone VoIP?; Who can I call using PC-to-phone VoIP? and more...

It works like this. You use your computer softphone to make a phone call by dialling in a traditional phone number into your system. You're going to be using your microphone and speaker to communicate and your voice is going to be converted to digital signal. That digital signal is going to go over to the Internet, over to your service provider who's going to convert you back to analogue. And that's how you communicate with the traditional phone system and that call will go to a landline and where the other caller is going to pick up the phone and have a conversation with you.