CUCM Configuration#

Overview#

Cisco Unified Communications Manager (CUCM) devices provide the core call processing capabilities for HCS, and are a critical part of the VOSS Automate provisioning workflows.

CUCM devices must be configured before setting up the dial plan (if applicable), user, subscriber, line, and phone configuration.

CUCM devices must then be assigned to one or more Network Devices Lists (NDLs). The NDL is then assigned to one or more sites. The NDL is used to choose the CUCM used for configuration, based on the site selected in the hierarchy context.

Related Topics

Shared versus Dedicated CUCM#

CUCM devices can be dedicated to a specific customer, or they can be shared between multiple customers.

  • To share the CUCM across multiple customers, add the CUCM at the Provider or Reseller hierarchy level.

  • To dedicate the CUCM to a single customer, add the CUCM at the Customer hierarchy level.

    When setting up CUCM as a dedicated instance, you can choose to set up CUCM after you create the customer.

Servers within a CUCM Cluster#

Within a CUCM cluster, you can configure the following nodes:

  • Cisco Unified Communications Manager Publisher node

    Note

    Configure a CUCM Publisher node before configuring any other type node.

  • Cisco Unified Communications Manager Subscriber node

  • IM and Presence Service Publisher node

    Note

    Configure an IM and Presence Service Publisher node before configuring an IM and Presence Service Subscriber node.

  • IM and Presence Service Subscriber node

Sync with VOSS Automate#

Configuring a CUCM device on VOSS Automate creates a scheduled data sync to import model data from the device into VOSS Automate.

Note

Some license-related models are excluded from CUCM imports by default:

  • device/cucm/LicensedUser

  • device/cucm/LicensingResourceUsage

  • device/cucm/HcsLicense

  • device/cucm/CiscoCloudOnboarding

  • device/cucm/RegistrationDynamic

  • device/cucm/RoutePlan

The scheduled data sync ensures that the VOSS Automate cache maintains the most current view of the configured device. Any changes to the configuration occurring on the device, including additions, deletions, or modifications, reflect in VOSS Automate after the next data sync.

Note

  • There is no immediate data sync upon update or modification.

  • The scheduled data sync fails if the CUCM administrator account credential has expired. Expiration of the administrator account credential can cause failures in subscriber management activities as well.

The recurring sync is scheduled to occur every 14 days, but is disabled by default. You can enable the sync and modify the schedule via (default menus) Apps Management > CUCM > Schedules.

When determining the appropriate schedule setting, the frequency of the sync must be weighed against the additional processing and network activity associated with the data sync. You can also manually run the data sync at any time via (default menus) Apps Management > Advanced > Perform Publisher Actions, or from Administration Tools > Data Sync.

Important

Allow the initial data sync to complete before doing more configuration on VOSS Automate that requires information from CUCM.

To improve the performance of a data sync, control the types of data synced in. See Controlling a Data Sync with a Model Type List for more information.

For details on Change Notification Sync in VOSS Automate and on switching between Full Sync and Change Notification Sync, refer to the topic on the Change Notification Feature (CNF) following Introduction to Change Notification Sync.

Field Mappings in CUCM#

When setting up a CUCM device with LDAP integration, you can map CUCM user data to VOSS Automate user data for any field, based on the Field Mappings in the CUCM server. These mappings are configured at the LDAP Directory in CUCM. The mapped user data, for example location data, can later be used in a filter used to move users to sites.

On the Field Mappings tab, you can modify the mappings except for hard-coded mappings. Hard-coded mappings appear in gray and are read-only.

Note

The field name entered in the mapping on VOSS Automate must exactly match the field name entered in the mapping in the CUCM in the Custom User Field Name field. If the field names do not match, the field is skipped during the sync.

Related Topics