[cisco-voip] Unity 4.2.1 - Domino 7 --- MWI Delivery doesnt work as expected

[Ralf]

Hi All,
I need some help/ suggestions maintaining this customers environment.
If a new message arrives at unity, it is recorded and delivered to the 
domino message store. Notes client shows the new message and it is 
accessable. Also possible is using the phone to play and delete the message.
But, MWI is not showing if a message is arrived od deleted!
If I manually do a refresh at the subscribers Message page, MWI will 
indicate the right status on or off related to the real message status.
The Unity port is dialling the extension.
 >>>But its not working automatically as it should.<<< just with this 
manual refresh
When the new message is delivered, Unity is expected to monitor this and 
  dial out the users extension. This is not happening! I compared this 
process with our companys Unity and there it's working that way.
The Unity process expected to do this is the Domino Monitor->Notifier-> 
Notifier.
How can I verify the delivery process using and analysing Micro Traces? 
The traces are already enebled.
I think the technical aspect is still possible (because of the manual 
delivery request), but something on the Domino monitoring is still wrong.
How can I veryfy that in more details?

Any suggestions?

Kind regards Ralf