/mcpInteraction Feature If Secure Tones are configured and the call is secured, the secure tone plays to both call participants at the outset of the call irrespective of whether Monitoring Tones are configured. If Secure Tones and Monitoring Tones are both configured, the secure tone plays once, followed by the monitoring tones. If Secure Tones, Monitoring Tones, and Recording Tones are all configured, and the call is recorded and monitored, the secure tone plays once followed by the recording tone. The monitoring tone does not play. Secure Tones Silent Monitoring Restrictions Restriction Feature Unified Communications Manager does not support barge with silent monitoring. If an agent call is being monitored, the barge-in call from a shared line fails. If the agent call has already been barged, the monitoring call fails. Barge Unified Communications Manager does not support transferring Secure Silent Monitoring calls over an intercluster trunk. Transfer of Secure Silent Monitoring over an intercluster trunk The monitoring fails if the supervisor logs in through the non-secure mode and the Agent logs in to the MRA mode. For more information, see the Secure Silent Monitoringsection. Silent Monitoring Restriction Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 128 Monitoring and Recording Silent Monitoring Restrictions