How do you broadcast yourself live via the PC?

Can someone please help me? What if I have a live recording of an event on my video cam. I have also connected the video cam to my PC for all these to be recorded.

How do I then sent all these live images via the phone to another person via his PC?

For example, my mom may like to demonstrate certain recipes of cooking to my gf and she needs to do it live via the video cam. How can she broadcast this demonstration to my gf using the PC via the phone line?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).