I have encountered the same problem. Not only is it for voice clips, but for almost all audio/video related activities (start or send webcam, try running the audio/video setup, send a voiceclip) Receiving a voiceclip works fine though.
Try doing any of these, and if its the same result of WLM not responding after running the audio/video setup, you might be in the same boat as me. I have a ticket open with WLM support at Microsoft that has been escalated, but they seem to be taking their time in doing anything.
see
Problems with Webcam and audio
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![[Image: sharing.png]](http://www.meetcweb.com/files/sharing.png)
