how to put data or voice to modem

[tailun]

I use a voice modem to make a telephone application.
How to put the voice to the phone call.
Please Help Me!
Thank You!

To make such applications you have to learn Tapi (Telephone Application Programming Interface). I suggest you buy a book on it. Many books are available.

With Tapi you can create hands - free applications such as making a software that you can talk to someone else through a microphone. You can also use it to make a answering machine.