I have developed a Computer Aided Telephone Interview system using C++ MFC.The dialing system is implemented using TAPI. The problem I have is that only two of the LINCALLPARAMS - LINEMEDIAMODE settings in TAPI appear to work on my system. These are DATAMODEM and INTERACTIVEVOICE. Both funtion but each has an implementation problem.
Using INTERACTIVEVOICE a connection dialog is generated under windows 2000. This allows me to proceed with connecting to the headset but adds an unwelcome and unnecessary step in the process.
Using DATAMODEM the connection happens seamlessly but because the data connection expects to communicate with another modem, the modem plays a loud connection tone and unless the transfer to the telephone headset and the disconnection of the modem are syncronised well, the modem plays this tone into the headset. This is potentially harmful for the operator.
My question : Is there a way to either suppress the automatic dialog that Windows 2000 generates when I use INTERACTIVEVOICE or alternately suppress the modem connection tone when using DATAMODEM.