any one have try this before ?
MWI is working ?
Yes, many sites use this setup:
Are you indicating the MWI isn't working at all? You may want to check out http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsu62686
Have you gone through the MWI troubleshooting guide?
Hope that helps,