sound recording over RDP

Hello,

I have the following setup: 

Server-machine with windows 7 ultimate, here is a microphone attached

Client - machine with windows 7 home, here I want to play the sound that is recorded from the 'server' machine.

is there any way to do this via Windows Remote Desktop? If I connect remotely to the server-PC, it plays the normal sound that is played from the server-PC. But the microphone sound is not played and I cannot see the Mic under recording devices.

Any ideas?