asterisk users - Nov 2013 - 11.6 voicemail message cropped off?

Hey all

I am running 11.6 and when a caller is sent to vociemail the greeting is 
cropped off and the beep occurs quickly.
Incoming calls are g729 and this occurs where it is using the default 
greeting or a user provided greeting.

I really want to go production with this are there any ideas what could 
cause an issue like this we have never seen it in 1.4 - 1.8

Bryant
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