Detecting incoming calls

[kandemor]

Hello,

I have two computers with Windows XP connected by modem. I want that the computer that receives the call from the other modem, hang up this call and make the call. So, I have to detect when a modem is receiving a call. How can I make this?

Thank you very much!

VinCenT

[Improving]

start here (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/tapi/tapi2/lineopen.asp)