/mcpDescription Field Displays the common name or the common name appended with the serial number of the certificate. Common Name or Common Name_SerialNumber is the file name of the certificate. Common Name / Common Name_SerialNumber By default, the Organization Unit field is removed from the Certificate Signing Request. Choose this option to include the Organization Unit field in the Certificate Signing Request. Note If the Certificate Signing Request has an Organization Unit and the signed CA certificate does not, you can upload the signed CA certificate to Unified Communications Manager. Include OU in CSR Appears only if you have chosen any of the following options using the Certificate Purpose drop-down list. • tomcat • tomcat-ECDSA • CallManager • CallManager-ECDSA • TVS This field lists the host names that are protected by a single certificate. The certificate common name is the same as the hostname. Both, CallManager-ECDSA and tomcat-ECDSAcertificate has a common name that is different from the hostname. The field displays the fully qualified domain name for the CallManager-ECDSA certificate. Auto-populated Domains This field lists the type of keys used for encryption and decryption of the public-private key pair. Unified Communications Manager supports EC and RSA key types. Key Type Security Guide for Cisco Unified Communications Manager, Release 15 and SUs 53 Basic System Security Self-Signed Certificate Fields