Win32::SerialPort server side

[didier]

Hello,

I was using Win32::SerialPort to speak, over a phone line, with a data service without any problem.
Now I need to set up a service...
I know that I can configure an XP box to link modem's inbounds calls to a TCP interface on server side, but I hope a better solution.
So my question is: is someone knows how to listen the modem for incoming call and how to get the line using Perl ?

Thanks.