/mcpFor more information, see the Upgrade section in the Cisco Finesse Installation and Upgrade Guide at https://www.cisco.com/c/en/us/support/customer-collaboration/finesse/ products-installation-guides-list.html. • After the upgrade, you can move to Smart Licensing. For Smart Licensing details, see Cisco Unified Contact Center Express Features Guide. • From Unified CCX Release 12.5(1) SU1, the connection between RmCm Subsystem and Unified CM can be secured by enabling Secure Real–Time Transport Protocol (SRTP) in AppAdmin. If you had enabled SRTP before upgrading to Unified CCX Release 12.5(1) SU1, disable and enable it again after upgrade. Otherwise, the connection between RmCm Subsystem and Unified CM will not be secure. • When SRTP is enabled in Unified CCX release 12.5(1), after upgrading to Unified CCX release 12.5(1) SU1, the RmCm subsystem will be out of service on the subscriber node. Disable and enable SRTP again to operate Unified CCX in SRTP-enabled mode. • When SRTP is enabled in Unified CCX release 12.5(1) SU1, if you switch back to Unified CCX release 12.5(1), the RmCm subsystem will be out of service on both the nodes. Disable and enable SRTP again to operate Unified CCX in SRTP-enabled mode. Preupgrade Tasks All the nodes in a cluster must be on the same version. However, if you have upgraded only some nodes and want Intelligence Center Reporting Service available on the upgradednodes, do one of the following: • Stop the Intelligence Center Reporting Service on all the nodes that aren’t upgraded and then restart the upgraded nodes. • Before the upgrade, change the cluster mode to UDP on all the nodes using the utils cuic cluster mode CLI command. After upgrading all the nodes, set the cluster mode to TCP. For more information, see the section in the Administration Console User Guide Cluster Configuration for JVM Using Hazelcast for Cisco Unified Intelligence Center. Note Step 1 Obtain the pre-upgrade COP from https://software.cisco.com/download/home/270569179. The following table lists the release versions and their corresponding COP files to upgrade to Release 12.5(1) SU3: Table 3: Release Versions and COP Files for Unified CCX Release 12.5(1) SU3 Pre-Upgrade COP Name Version ciscouccx.1162.1251SU3PREUPGRADE.51.cop.sgn ucos.keymanagement.v01.cop.sgn 11.6(2) ciscouccx.1201.1251SU3PREUPGRADE.4.cop.sgn ucos.keymanagement.v01.cop.sgn 12.0(1) Cisco Unified Contact Center Express Install and Upgrade Guide, Release 12.5(1) SU3 17 Unified CCX Upgrade Preupgrade Tasks