play wav audio through phone line

[IMRocknRoll]

I can make a voice call, and use the +VTX command to send audio through the modem...at 8000 samples per second. But, I'd like to send it at a higher sample rate. I know there is the +VSP command to turn on speaker phone and it allows me to record audio from the phone line at higher sample rates, but the only way to send any audio out is by using the microphone. How can I tell the modem or Win2K to play audio from media player, and not using the modem?

Any help would be appreciated. I have been trying everything, so some things I may have already tried, but even if I have tried it...your post may help me see things in a different way.

Thanks