VOSS Migrate

Fast and efficient migration and on-boarding of large volumes of users, devices, and services to the latest UC solutions

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Migration, Transformation and Change

Enterprise organizations are taking advantage of the latest digital workplace tools to be more efficient across multiple geographies, sites and units, with an increasingly diverse and mobile workforce. Many also still make heavy use of legacy systems, resulting in a need to carefully manage the transition to new UC solutions.

Migration is transformational. Large volumes of users, devices and services must be moved – along with large volumes of associated configuration and service data. Attempting this manually or with bulk loading is fraught with danger: errors are made, there is too much data to be checked and correlated, and the process is slow. Long freeze periods are required, the migration becomes unnecessarily complex, and resolving user issues leads to significant post-migration costs.

Introducing VOSS MIgrate

VOSS Migrate is a proven path to the latest UC solutions, introducing automation across the migration lifecycle, handling largescale and complex datasets, and introducing transformation rules, to reduce the reliance on manual processes, ad-hoc tools, and disjointed mechanisms, ensuring a seamless, secure, and efficient migration.

Who is it designed for?

Service providers (hosted, managed, and SIs) who want to reduce time to revenue while on-boarding new customers – or who want to migrate customers to the latest UC solutions. Enterprises and government working to reduce the cost and complexity of migrating to the latest UC solutions.


Delivers a better and more controlled customer migration experience with a faster time to benefit

Provides high levels of automation around the migration process, increasing accuracy and confidence – with the option to fully audit the data and process

Improves efficiency and reduces the demand on internal, skilled, and scarce technical resources

Reduces risk by implementing a predictable, robust based migration process

Avoids serious outages resulting from errors and misconfiguration

Improves planning thorough deep data analysis and quality review processes

Protects data security and integrity through access control, audit logging and robust database storage

Provides flexibility to cater for a wide range of customer-specific migration scenarios and requirements

Integrates with existing business processes and approvals

How VOSS Migrate works

Feature specification

VOSS Migrate rapidly and efficiently migrates large volumes of users, devices and services to the latest UC solutions available. VOSS Migrate works with a wide variety of voice and UC platforms to migrate your data: from an older UC solution release to a newer version, or from a legacy PBX infrastructure to the latest cloud-based solution, or from on-premises to a hybrid UC solution. It is available to service providers and enterprises or government organizations to reduce the time, cost, risk, and pain associated with large migrations.

VOSS Migrate can be delivered as a product for use by providers and enterprise organizations, or as part of a managed service package whereby the full migration is managed and delivered by VOSS Global Services.

VOSS Migrate is available both in the cloud and can also be installed on-premises as a single virtual machine and connected to both the source (where users are being migrated from) and target (where users are being migrated to) platforms.

Migration scenarios

VOSS Migrate provides a flexible platform for a variety of migration scenarios:

UCaaS Providers

  • Migrate to latest UCaaS version
  • On-board new customers

Managed Service Providers

  • Consolidate legacy solutions
  • Migrate legacy TDM to latest UC


  • Migrate from on-premises to cloud solution
  • Move to Microsoft Teams


  • Site moves or site dial plan upgrades
  • Changes to numbering plans


VOSS Migrate specifications
Web portal VOSS Migrate provides an intuitive web portal to allow project teams to control their migration projects and to review data before loading into the target platform. The web portal is password protected and these credentials control which projects a particular login has access to.
Migration approach D-E-T-V-L The VOSS Migrate methodology is a DETVL approach that automates the processing of large amounts of user and service data, with high rates of accuracy, using the following steps:

  • Discovery - legacy PBX discovery and export (multi-vendor)
  • Extract – data extraction, clean, and normalization
  • Transform – data transformation and enrichment
  • Validation – review and edit
  • Load – batch migration
  • Project containers For efficiency and rapid project start-up, one instance of VOSS Migrate can be used for several migration projects, each managed by a separate team. The data and settings related to each project are managed separately and access is controlled through RBAC (role-based access control) settings.
    Discovery and extraction VOSS Migrate is designed for deep data discovery and audit, extracting from multiple sources to capture all pertinent data. This step is essential for planning and design and can be completed without impact to users. Typical data extracted from the source platform includes:

    User data Phone data Lines
    Hunt groups Pickup groups Line groups
    Call forwards Speed dials Line labels
    Dial plan Partitions E164 number plan
    Voicemail LDAP sync CSS / COS / profiles
    Analogue ports Gateways SNR (single no. reach)
    EM (hot desking) Soft keys Button templates

    Review and edit Once extracted, the data can be cleaned, updated, and viewed from the VOSS Migrate web portal. If required, these views can be exported for offline review, audit, and sign-off, before proceeding with the migration process.
    Mapping, transformation, validation and loading Business rules and logic are applied to clean, modify, and enrich the data in preparation for migration. Manual data tasks are automated. Data currency issues are reduced through regular loading/refreshing of the imported data. Once transformed, the data is reviewed and edited through the VOSS Migrate browserbased interface. This real-time validation is superior to spreadsheet data reviews for ease of use and accuracy. Validation ensures data-integrity prior to loading.

  • Rules-based normalization, transformation, and filtering of data
  • Data editing via user interface with search, sort and filter functions
  • Validation against target schema to highlight invalid data
  • Excel ‘direct load’ format to support mass changes and updates

  • Automated batch-based loading moves the data into the target platform in preparation for a site cutover. The target platform is normally the VOSS Automate provisioning system and this in turn can provision into a variety of modern UC solutions. Loading into VOSS Automate is fast with several transactions running in parallel. Provisioning successes and failures are captured and logged for review.

    Supported targets (via VOSS Automate):

    Cisco CUCM / CUC version 10.5 or later
    Cisco Webex Teams
    Cisco Unified Contact Center Express (UCCX)
    Microsoft Skype for Business – on-premises and online
    Microsoft Teams
    Avaya Aura Communication Manager

    Rules and filters Standard Rules can be configured in VOSS Migrate to filter and transform the source data prior to loading into the target platform. VOSS Migrate includes a set of standard library rules; further rules can be configured for the project as required to meet the requirements of the migration process.

    In addition, Advanced Rules can be provided by VOSS to meet the most demanding migration requirements. These rules are provided as scripts and are loaded into VOSS Migrate, becoming visible from the web portal.
    Batching and scheduling The migration process can be segmented into batches which are aligned with the cutover schedule. Each batch typically contains a nominated set of sites and these in turn contain users, devices, and associated services. During a migration, the process will normally be tested with a model office test site, followed by batches of live sites (of increasing size as the migration progresses).

    VOSS Migrate provides full roll-back facilities of batches or individual sites in the case where issues are encountered during the migration process.
    Sources The following source platforms are supported – these are where data pertaining to users, devices, and service settings is retrieved from:

    Cisco UC – CUCM / CUC version 4.0 or later using either a BAT CSV file import or direct connection (AXL data)
    Cisco Call Manager Express (using backup configuration files or direct connection)
    Cisco Unified Contact Center Express (UCCX)
    Bulk loading sheets in Excel or CSV format

    Other legacy PBX systems are also supported – these require the installation of a discovery server to normalize the data for import into VOSS Migrate. Support through this route is provided for Avaya, Ericsson, Mitel, Nortel and Siemens.

    Contact VOSS to discuss your specific platform requirements.
    Transaction and change log All migration activity is recorded in the VOSS Migrate transaction log to provide a full audit and traceback capability. This log also provides mechanisms to rapidly identify issues encountered during a batch migration for fast resolution.
    Access control Access to VOSS Migrate is controlled using secure admin credentials and these in turn are associated with comprehensive RBAC role profiles.
    Machine specification For on-premises installation, VOSS Migrate is designed to run as a virtual machine on a VMWare environment with a fixed IP address. The specifications for the machine are:

    4 x vCPU | 16GB RAM | 100GB DISK (thick provisioned, eager zeroed)

    Optional add-on legacy discovery server:

    Windows 2003/2008 minimum (x32 or x64) machine with SQL Server 2005 or greater
    IIS 7 RDP enabled 250MB DISK

    Additional articles of interest

    Further reading
    VOSS MIgrate solution brochure image

    Don’t have time to read everything now? Download a PDF version of this webpage.

    Innovation updates
    VOSS Innovation Update Video

    We see the growing trend that many enterprises have now deployed some form of cloud collaboration – often Microsoft Teams, Zoom IM, or Cisco Webex. Our customers’ focus for the year ahead is to reconcile these latest UC tools with their corporate telephony strategy.

    Let’s talk
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    VOSS gives you a central point of control and insight into your UC, collaboration, and contact center processes. Your digital business transformation journey will be supported every step of the way, and underpinned by our award-winning technology.