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Lync 2010 client cannot place calls to the Exchange Unified Messaging Auto Attendant
Lync 2010 client is unable to place a call to the Exchange Unified Messaging (EUM) Auto Attendant (AA)
The EUM AA that is associated with the Lync Server 2010 (LS 2010) pool was created with a display name that contains spaces.
The resolution for this issue requires that:
- The EUM AA that is associated with the LS 2010 pool that has a display name with space characters in it
- Be removed and replaced with a EUM AA that has a display name with no space characters
- Followed by the needed configuration steps to integrate the EUM AA with the LS 2010 pool
This procedure can be accomplished by making changes from the following two locations:
- From the Exchange management Console (EMC) or from the Exchange Management Shell (EMS)
- From the LS 2010 front end server
To remove and replace the EUM AA use the instructions listed below:
Managing UM Auto Attendants
Once the EUM AA has been re-created use the following Exchange Powershell cmdlet from the EMS to associate the EUM Dial plan with the LS 2010 pool object:
To make sure that the new EUM AA is recognized by the LS 2010 pool infrastructure:
- On an LS 2010 Pool Front End Server open Windows Explorer and browse to the following folder: %Program Files%\Common Files\Microsoft Communications Server 2010\Support\
- Double click on the OcsUmUtil.exe file to launch it
- Click on the Load Data button on the Exchange UM Integration Utility dialog
- Choose the Forest domain that is hosting the LS and EUM infrastructure from the Exchange UM Dial Plan Forest drop down selector
- Use the Add or Edit buttons on the Exchange UM Integration Utility dialog to configure your new EUM AA
- If your EUM dial plan for the LS 2010 pool supports a System Attendant (SA) configuration make sure that it is added with the EUM AA configuration in the Exchange UM Integration Utility dialog.
- When the configuration is complete close the Exchange UM Integration Utility dialog
The error message that the Lync 2010 client provides when the call to the EUM AA fails appears to be non - essential.
To confirm that this is the issue that is occurring:
- Download the Lync Server 2010 Resource Kit Tools and install them onto the Windows client that hosts the Lync 2010 client
- On the Lync 2010 client that is providing the error turn on the client logging feature that is available the General tab through the Lync 2010 client's Tools, Options menu
- Check Turn logging on in Lync checkbox
- Click on the OK button
- Use the Lync 2010 client to dial into the EUM AA to re-create the error message
- Exit out of the OC client
- Use Windows Explorer on the Windows client to locate %Program Files%\Lync Server 2010 \ResKit\Tracing folder
- Double-click on the Snooper.exe file to launch the Snooper SIP capture utility
- Use Snooper to locate and open the %userprofile%\Tracing\communicator-uccpapi-0.uccapilog
- Use the search feature of Snooper.exe to search for "The application specified an invalid request-uri"
- The results of the search should be similar to the SIP response packet information that is listed below:
| Trace-Correlation-Id: 3157480233|
Start-Line: SIP/2.0 400 Bad request
From: "Thomas Anderson"<sip:firstname.lastname@example.org>;tag=d188533aa4;epid=d01f1abc1f
CSeq: 1 INVITE
Authentication-Info: TLS-DSK qop="auth", opaque="F952C736", srand="54B4DF14", snum="15",
rspauth="8f86570efd6df642296ea281242bdc684db93fb1", targetname="ocsserver.contoso.com", realm="SIP Communications
Via: SIP/2.0/TLS 10.0.0.122:49382;ms-received-port=49382;ms-received-cid=1C2C00
ms-diagnostics: 1;reason="Service Unavailable";AppUri="http%3A%2F%2Fwww.microsoft.com%2FLCS
%2FExumRouting";reason="The application specified an invalid request-uri";source="ocsserver.contoso.com"
for other considerations.
Article ID: 2431942 - Last Review: October 27, 2010 - Revision: 5.0
- Microsoft Exchange Server 2007 Enterprise Edition
- Microsoft Exchange Server 2007 Standard Edition
- Microsoft Exchange Server 2010 Enterprise
- Microsoft Exchange Server 2010 Standard
- Microsoft Lync Server 2010 Enterprise Edition
- Microsoft Lync Server 2010 Standard Edition
- Microsoft Lync 2010
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