I need some information about the modem ,How can I construct a call , end it ,get the caller number , get the digitized telephoney signal with any of these programming languages ( C , Java , Visual Basic 6)
I have post this topic in PC interface forum , but no one answer
If you want to programe with Visual C++ i suggest you to take a glance at
these two paper in www.codeproject.com
1-Detecting and Installing modem and RAS, Dial-up Network.
2-Serial communication for Win32 with modem support
you can also find there another useful papers about network programming
and hardware interfacing
Added after 4 minutes:
except the two refrenced above ,lots of paper and written program about dialup will be find at **broken link removed**
you can also visit https://www.tetraedre.com/advanced/serial2.php
for serial communication in modems