/mcp• To pause the installation after the system successfully verifies network connectivity, choose Yes. • To continue the installation with a pause, choose No. The First Node Access Configuration window displays. Step 4 Enter the publisher node connectivity information and choose OK. The system checks for network connectivity. If you chose to pause the system after the system successfully verifies network connectivity, the Successful Connection to First Node window displays. Choose Continue. Note If the network connectivity test fails, the system always stops and allows you to go back and reenter the parameter information. The SMTP Host Configuration window displays. Step 5 If you want to configure an SMTP server, choose Yes and enter the SMTP server name. Note To use certain operating system features, you must configure an SMTP server; however, you can also configure an SMTP server later by using the operating system GUI or the command line interface. The Platform Configuration Confirmation window displays. Step 6 Choose OK to start installing the software or choose Back to change the configuration. Step 7 When the installation process completes, you get prompted to log in by using the Administrator account and password. What to do next If you have just installed a Unified Communications Manager cluster and you want to install the IM and Presence Service on the same cluster in a standard IM and Presence deployment (as opposed to a central IM and Presence cluster deployment), return to Attended Installation, on page 48 in order to install the IM and Presence Service cluster. Otherwise, proceed to the postinstallation tasks: • Postinstall Tasks for VMware vSphere ESXi, Cisco NFVIS-for-UC, and Nutanix AHV, on page 81 • Postinstall tasks for the IM and Presence Service (VMware vSphere ESXi, Cisco NFVIS-for-UC, and Nutanix AHV), on page 91 Touchless Installation Task Flow for ESXi Complete these tasks to install your Unified Communications Manager and IM and Presence Service node or clusters in a single process via the touchless installation method. Before you begin Preinstall Tasks for Unified Communications Manager on VMware vSphere ESXi, on page 35 Installation Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs 60 Installation Methods Touchless Installation Task Flow for ESXi