C# - Detect Incoming Phone Calls

C# - Detect Incoming Phone Calls

I would like to know how can i listen to my home telephone via my computer
(with C#) and get an alert when someone are calling to my home right now,
and get the phone number to C# I know it's possible because i saw it
before
I have a modem (+ router + switch) that connected to my computer and to my
telephone connection.