- Install the following cumulative update for UCMA 2.0.982170 Description of the cumulative update for Office Communications Server 2007 R2, Unified Communications Managed API 2.0 Core Redist 64-bit: July 2010
- For UCMA 2.0-based trusted applications that transfers calls to PSTN numbers, make sure to add all the Fully Qualified Domain Names (FQDNs) of the OCS 2007 R2 pool into the authorized list of servers that can connect to the application. The signature verification process requires OCS 2007 R2 to connect to the application host in order to obtain the certificate that is used for signing.
- If the certificate on the application host changes, the application has to restart in order to make sure that the connections are reestablished by using the new certificate.
- Applying the cumulative update alone may not be sufficient if the trusted application does not authorize all OCS 2007 R2 pools that you deployed. Please contact the application vendor to address this issue.
Article ID: 2251445 - Last Review: 22-Jul-2010 - Revision: 1