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MWI not synching


We are currently running CM ver 4.1.3 and unity ver 4.0.2 for voicemail only. Recently the MWI notification has stopped working. I have enabled the traces on Unity for MWI but when we leave a voicemail for a subscriber the MWI light does not come on and there is nothing on the trace logs on unity. Same issue if a subscriber listens to or deletes all their messages the MWI light remains on and there is nothing in the trace logs on unity. If I do the manual resynch from the unity tools the MWI lights go to the correct status and I see the activity in the trace logs. However any further activity that should change the MWI state, does not. The only way to get the MWI state to change is to do the resynch tool again. The only error messages in the event log are that exchange is out of licenses. However I have been informed that this should not cause any issue because we are using voicemail only and not UM. Any help would be greatly appreciated.


Re: MWI not synching

Hi Bud,

In Unity MWI traces check the AVMsgStoreMonitor trace and look for MAPI notification:


If you dont get anything I can tell Exchange is the culprit.

This is why when we force the login via resynch it works.

Check the following:

Here is the Cisco link for problems like this:


And the MS reference:;en-us;319572#XSLTH3120121124120121120120

After that check NIC settings:

Make sure only 1 is enabled (If not using NIC)

Regarding the error, disable License Logging Service in Windows Services.

After that I would recommend you to open a case with us for further troubleshooting.

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