TAPI 3.0

[Guest_imported]

I AM DOING PROJECT IN TAPI 3.0. THE VOICE COMING FROM TELEPHONE IS RECORDED AND SEND AS ATTACHMENT TO THE CALLED PERSON. I AM NOT GETTING ENOUGH MATERIAL ABOUT TAPI 3.0 .
PLEASE TELL HOW TO CAPTURE WHICH TELEPHONE BUTTON IS PRESSED AND HOW TO SEND VOICE MAIL ATTACHMENT.