Overview

This guide provides information about migrating an on-premises deployment to the Cisco UCM Cloud using the Yarnlab Wrangler UCMC Tool. During a migration, Cisco deploys the Unified CM cluster, then an administrator at the partner configures it, replicating the on-premises source cluster/s and register the end-user devices to the UCM cloud post migration.

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In the Template option, Wrangler will deploy either a standardised CUCDM type dial plan or a standard Simplified Dial Plan to the target cluster, existing dial plan objects then have to be mapped to the target dial plan objects.

Migration Process

The migration process goes through a number of steps as per below pictures

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Prerequisites

Recommendations for using the Wrangler UCMC Tool

Hardware requirements :

Software Requirements: Yarnman OVA for initial installation and Yarnman installed. The process to install Yarnman is described in Yarnman Setup Guide under interfaces chapter Yarnman Installation and Setup - for yarnman 2.5.x

The following configuration needs to be setup before using Wrangler UCMC

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Minimum Mapped Objects (need to be configured on target system)

• MRGL (MRG)

• CMG

Data Extraction

• Configuration is extracted from the source and target clusters and imported into Migration Assistant  including all lines, devices, users and dial plan

• Configuration can be periodically rediscovered if required for phased migrations

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