| Microsoft Office Communications Server 2007 R2 | |
| Troubleshooting the Central Forest Topology for Office Communications Server 2007 R2 | |
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| Deploying Office Communications Server 2007 R2> Deploying Office Communications Server 2007 R2 in a Multiforest Topology> Deploying Office Communications Server 2007 R2 in a Central Forest Topology> |
Use the information in this section to help troubleshoot problems that you may encounter with a central forest topology deployment.
 Note: |
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| Note NTLM must be used to authenticate contacts in the central forest. Using Kerberos or NTLM and Kerberos for authentication of contacts in the central forest is not supported. |
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