/mcpDescription Task Flow Complete this task to install a Unified Communications Manager or IM and Presence Service cluster using the Install with Data Import. Install with Data Import, on page 75 Complete these tasks if you want to add a node to an existing Unified Communications Manager or IM and Presence Service cluster. Add a New Node to an Existing Cluster, on page 79 Attended Installation Task Flow Complete the following tasks to install Unified Communications Manager and IM and Presence Service cluster using the basic attended installation process: • Installs of a Unified Communications Manager telephony cluster • Installs of the IM and Presence Service in a Standard Deployment (de-centralized/distributed). Depending on your installation scenario, you may not need to perform all the tasks. For example, if you are installing the IM and Presence Service on an existing Unified Communications Manager cluster that is already in use, you only need to complete the tasks for installing the IM and Presence Service. Note Before You Begin Preinstall Tasks for Unified Communications Manager on VMware vSphere ESXi, on page 35 Preinstall Tasks for Cisco Unified Communications Manager on Cisco NFVIS-for-UC, on page 37 Preinstall Tasks for Cisco Unified Communications Manager on Nutanix AHV, on page 38 Preinstall Tasks for IM and Presence Service on VMware vSphere ESXi, on page 39 Description IM and Presence Service Unified Communications Manager Begin the install process for Unified Communications Manager. — Attended Installation, on page 48 Step 1 Upgrade your install image to a newer version. This optional task is available for Unified Communications Manager installs only. — (Optional) Complete either of the following tasks: • Upgrade Install Image from Local Source, on page 50 • Upgrade Install Image from Remote Server, on page 51 Step 3 Installation Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs 46 Installation Methods Attended Installation Task Flow