asterisk users - Jan 2006 - Trailing silence in voicemail messages

Is there some way * can trim the trailing silence in a voicemail 
message?  There's the "maxsilence" setting for silence detection
which
is related to what I'm asking but not the same.  Let's say I set the 
maxsilence to 8 seconds.  During the recording of a voicemail, if 
someone doesn't say anything for 8 seconds, the recording ends.  
However, the recording still has 8 seconds of silence at the end.  I'm 
asking how to automatically chop off that last 8 seconds of silence.