CM6.1 - Microsoft Exchange 2007

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Oct 10th, 2008
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When I call to the voice mail I get a busy signal back. It has worked before.

The event viewer log from the Exchange server displays the following message: "the unified messaging server rejected an incoming call with ID ......@x.x.x.x" Reason "Cannot find a valid UM IP Gateway for x.x.x.x..."

Any idea why is this happening? There has been some new configuration for the OCS installation.



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tim.giles Fri, 10/10/2008 - 02:26
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I'm not a 2007 expert but found a relevant document on google. It might be worth checking the details here to make sure the IP address is correct in Exchange Management:

Hope this helps.

MARTIN STREULE Fri, 10/10/2008 - 03:41
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Are you sure that the UM IP Gateway is (still) configured in Exchange?

Is the dialplan okay?

abartolomeu Mon, 10/13/2008 - 01:50
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In Exchange it seems to be everything properly configured as in the CUCM!

I would like to do some further troubleshooting like for example have some logs. What do you advise? /var/log?

Meanwhile there is something that I've noticed that I'm not sure if could be the problem:

On the administration UI, “System  Licensing  License Unit Report” I've confirmed that the license file is uploaded but the status does not indicate Ready.

Best Regards,



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