In Operations Monitor connections from Oracle Session Border Controllers to Operations Monitor machines are encrypted. These connections use TLS on port 4740. Unsecured connections are not allowed by default, unless the system has been upgraded from an earlier release that did not support it. Authentication is achieved by means of certificates. In a standalone scenario, you can register the SBC certificate in Platform Setup Application as a trusted certificate, and register Operations Monitor certificate in the Session Border Controller. If you prefer to manage certificates within a PKI, you can instead sign these certificates, and register the trusted Certificate Authority (CA) in each machine.