Unified CCX installation has the following installation options:

• Standard installation - This option allows you to install Unified CCX software from the installation disc.

• Unattended installation - This option allows you to use the installation disc and a preconfigured USB disk to install Unified CCX software unattended.

• Virtualization - Unified CCX supports installation on a virtual machine.

  Note	For more information, see the Unified CCX Virtualization related information located at: https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/uc_system/virtualization/virtualization-cisco-unified-contact-center-express.html.

Note	You can use the Cisco Prime Collaboration Deployment application also to install your cluster. For more information, see Cisco Prime Collaboration Deployment Administration Guide.

For information about system requirements, see the Unified CCX Compatibility related information located at:

https://www.cisco.com/c/en/us/support/customer-collaboration/unified-contact-center-express/products-device-support-tables-list.html

Note	For more information about VMware ESXi's that are supported, refer to the Virtualization for Cisco Unified Contact Center Express.

Read the following information carefully before you proceed with the installation:

Note

Both nodes in a cluster must be on the same version. However, if you have upgraded only one node and want the Cisco Unified Intelligence Center Reporting Service available on the upgraded node, do one of the following: Stop the Cisco Unified Intelligence Center Reporting Service on the node that is not upgraded and then restart the upgraded node. Before the upgrade, change the cluster mode to UDP on both nodes using the utils cuic cluster mode CLI command. After upgrading both 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.

• Unified CCX can be installed only on virtual machines and not on bare metal servers.

• DNS configuration and domain fields are mandatory for Unified CCX installation. Both forward and reverse lookups are required. DNS is required for the Unified CCX Chat feature to function and for integration with ICM by hostname in Unified IP IVR.

• When you Install Unified CCX on an existing server formats the hard drive, it overwrites all existing data on the drive. It also upgrades the system BIOS, firmware, and Redundant Array of Inexpensive Disks (RAID) configuration if they are outdated.

• Ensure that you connect each Unified CCX node to an uninterrupted power supply (UPS). This protects the Unified CCX server from unexpected power failure that damages the physical media.

• All servers in a cluster must run the same release of Unified CCX. The only exception is while upgrading cluster software, during which a temporary mismatch is allowed.

• Configure the server by using a static IP address so that the server IP address remains unchanged.

• Do not attempt to perform any configuration tasks during the installation.

• The field values (namely hostname and passwords) that you enter while you are running the installation program are case-sensitive. The hostname must be in lower case and the character limit is 24 characters.

• Ensure that the administrator username is not the same as any end user in CUCM.

• When you insert or remove a USB drive, you might see error messages on the console similar to "sdb: assuming drive cache: write through." You can safely ignore these messages.

• Ensure that the third-party web services support TLS version 1.2 before you integrate any third-party web services.

• After the installation of Unified CCX, you have to select the appropriate Smart License Type. For Smart Licensing details, see Cisco Unified Contact Center Express Features Guide.

• When creating the OS Administrator ID, ensure that it does not start with “uccx” or “UCCX” because such IDs conflict with system account names that are used internally within the Contact Center Express server. Ensure that the OS Administration password is at least six characters long; it can contain alphanumeric characters, hyphens, and underscores.

• Ensure that the Application User password is at least six characters long; it can contain alphanumeric characters, hyphens, and underscores.