Dial Phone Number in C#

Question

Hi all !

I have this problem that i have been searching the net for over 4 weeks now.

I need to write code in C# to dial a phone number! it sound simple but i can't do it. or at least, i don't know how to start ! I kept reading about something called TAPI .. then AT Commands .. then Ports .. then ....

I don't know how to start .. or how to do it !

Please .. HOW CAN I DIAL A PHONE MUBER ? how can i end the call ? .. etc???

Thanks guys