Certificate Infrastructure Requirements
Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.
Topic Last Modified: 2013-06-26
Office Communications Server 2007 R2 requires a public key infrastructure (PKI) to support TLS and mutual TLS (MTLS) connections. By default, Office Communications Server 2007 R2 is configured to use TLS for client-to-server connections.
Office Communications Server uses certificates for the following purposes:
TLS connections between client and server
MTLS connections between servers
Federation using automatic DNS discovery of partners
Remote user access for instant messaging (IM)
External user access to A/V sessions, application sharing, and Web conferencing
For Office Communications Server 2007 R2, the following common requirements apply:
All server certificates must support server authorization (Server EKU).
All server certificates must contain a CRL Distribution Point (CDP).
Auto-enrollment is supported for internal Office Communications Server servers.
Auto-enrollment is not supported for Office Communications Server Edge Servers.
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