Cisco Unified Communications Operating System Administration Guide, Release 9.1(1)
Cisco Unified Operating System Overview
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Cisco Unified Operating System Overview

Cisco Unified Operating System Overview

Cisco Unified Operating System Administration Overview

Cisco Unified Communications Operating System Administration allows you to configure and manage the Cisco Unified Communications Operating System. You can perform these administration tasks:

  • Check software and hardware status.

  • Check and update IP addresses.

  • Ping other network devices.

  • Manage NTP servers.

  • Upgrade system software and options.

  • Manage node security, including IPsec and certificates.

  • Manage remote support accounts.

  • Restart the system.

Operating System Status

From the Show menu, you can check the status of various operating system components:

  • Clusters and nodes

  • Hardware

  • Network

  • System

  • Installed software and options


From the Settings menu, you can view and update the following operating system settings:

  • IP—Updates the IP addresses and DHCP client settings that were entered when the application was installed.

  • NTP Server settings—Configures the IP addresses of an external NTP server; add a new NTP server.

  • SMTP settings—Configures the Simple Mail Transfer Protocol (SMTP) host that the operating system will use for sending email notifications.

From the Settings > Version window, you can choose from the following options for restarting or shutting down the system:

  • Switch Versions—Switches the active and inactive disk partitions and restarts the system. You normally choose this option after the inactive partition has been updated and you want to start running a newer software version.

  • Current Version—Restarts the system without switching partitions.

  • Shutdown System—Stops all running software and shuts down the node.

Security Configuration

The operating system security options enable you to manage security certificates and Secure Internet Protocol (IPsec). From the Security menu, you can choose the following security options:

  • Certificate Management—Manages certificates and Certificate Signing Requests (CSR). You can display, upload, download, delete, and regenerate certificates. Through Certificate Management, you can also monitor the expiration dates of the certificates on the node.

  • IPsec Management—Displays or updates existing IPsec policies; sets up new IPsec policies and associations.

Software Upgrades

Use the software upgrade options to upgrade the software version that is running on the operating system or to install specific software options, including Cisco Unified Communications Operating System Locale Installers, dial plans, and TFTP server files.

From the Install/Upgrade menu option, you can upgrade system software from either a local disc or a remote server. The upgraded software is installed on the inactive partition, and you can then restart the system and switch partitions, so the system starts running on the newer software version. For detailed tasks, see the Upgrade Guide for the Cisco Unified Communications Manager at http:/​/​​c/​en/​us/​support/​unified-communications/​unified-communications-manager-callmanager/​products-installation-guides-list.html.


You must do all software installations and upgrades by using the software upgrade features that are included in the Cisco Unified Communications Operating System GUI and CLI. The system can upload and process only software that is approved by Cisco Systems. You cannot install or use third-party or Windows-based software applications that you may have been using with a previous version of Cisco Unified Communications Manager.


The application provides the following operating system utilities:

  • Ping —Checks connectivity with other devices in your network.

  • Remote Support—Sets up an account that Cisco support personnel can use to access the system. This account automatically expires after the number of days that you specify.


You can access the CLI from the console or through a secure shell connection to the server. For more information, see the Command Line Interface Reference Guide for Cisco Unifed Communications Solutions.