/mcp• To update an existing application billing server, click the server hostname/IP address. Step 3 Enter the application billing server parameter settings. Step 4 Click Add or Update. Billing Server Authentication Issue If you have a billing server that is deployed with SFTP, and you are using a non-default cipher that you configured on both Unified Communications Manager and on the billing server, a connection issue may result if you restart a Unified Communications Manager server, or if you restart the Cisco CallManager service. If this occurs, the billing server is unable to authenticate and the connection are broken. After the restart, Unified Communications Manager advertises only the default ciphers and will not advertise any new ciphers that you installed, which will result in an authentication issue if you are using a non-default cipher. If you run into this issue, generate a new key and reset the connection: Procedure Step 1 Choose Tools > CDR Management. The CDR Management Configuration window displays. Step 2 Under Billing Application Server Parameters, locate your billing server. Step 3 Click Reset to generate a new key that corresponds to your billing server. After the reset, Unified Communications Manager advertises the default ciphers, and some additional ciphers. The billing server must have one of these ciphers that are installed to restore the communication. Configure CDR Enterprise Parameters Use this procedure to configure optional enterprise parameters for CDRs. For detailed field descriptions, click the parameter name in the GUI to access enterprise parameter help. Procedure Step 1 From Cisco Unified CM Administration, choose System > Enterprise Parameters. Step 2 Under CDR Parameters, configure values for the following parameters. For detailed field descriptions, click the parameter name in the GUI: • CDR File Time Interval—The time interval for collecting CDR data. For example, a value of 1 means each CDR file contains 1 minute of CDR data. • Cluster ID—Assign a unique identifier for the cluster. Step 3 Under CCM Web Service Parameters, configure values for the following parameters: Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs 23 CDR Analysis and Reporting Billing Server Authentication Issue