VOSS Solutions

Migrate, manage, monitor, and analyze your multi-vendor UC environment, on-premise or in the cloud, with VOSS

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  • ​About VOSS
    ​VOSS delivers greater TCO savings than any other UC management vendor Read more
  • ​Service provider
    ​Enabling the world’s leading service providers to deliver dynamic UCaaSRead more
  • ​Enterprise / Government
    ​Unlocking agile and flexible UC for large and medium enterprise organizations Read more
  • ​New to UC
    ​Are you new to VOSS? Here's an enterprise guide to UC managementRead more

VOSS Ranked #1 UC Operational Management Vendor


Independent UC analyst firm, Nemertes Research, confirms that VOSS consistently delivers the lowest total cost of ownership (TCO) for enterprise communications

  • Organizations that choose VOSS spend 19% less on their UC implementation costs, compared to organizations that use competing vendors
  • Organizations that choose VOSS spend 7% less per year on UC operating costs, compared to organizations using competing vendors


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NEW! Learn more about VOSS with our new product demo videos

VOSS-4-UC ServiceNow Integration VOSS-4-UC ServiceNow Integration Contact Center Management Contact Center Management Legacy PBX Migration Legacy PBX Migration VOSSBot VOSSBot VOSS-4-UC and Cisco Hybrid Spark VOSS-4-UC and Cisco Hybrid Spark VOSS-4-UC Provisioning & Management with a Single Pane of Glass VOSS-4-UC Provisioning & Management with a Single Pane of Glass VOSS-4-UC Overbuild Move Tool VOSS-4-UC Overbuild Move Tool VOSS-4-UC GUI Overview VOSS-4-UC GUI Overview VOSS-4-UC Modifying a User with Quick Add Subscriber VOSS-4-UC Modifying a User with Quick Add Subscriber

VOSS - The Only Vendor to Offer a Full UC Management Suite

VOSS is unique in integrating UC fulfillment, UC assurance, and UC accounting, across multiple UC vendors; all from a single, flexible web portal. Unified communications is inherently complex. With VOSS, your organization can overcome this complexity by managing all UC applications from multiple UC vendors, with a full suite of UC management capabilities. No other UC management vendor comes close to offering the depth of management that VOSS provides.

Find out more about VOSS-4-UC

Customer stories

  • Axians

    "As a Systems Integrator, it’s our job to provide high quality and cost-effective leading edge UCaaS packages to our customers. VOSS enables Axians to provide a highly automated and flexible UC management framework that allows us to respond to our customers' requirements quickly and efficiently." Read more

    Tom Greeve, Director at Axians

  • BT

    "VOSS is perfectly placed to support BT, as it is unique in its ability to manage the entire lifecycle of a UC platform, which has enabled BT to manage an ever-expanding and complex network of multi-national enterprise customers, from a single point of control." Read more

    John Blake, Head of Hosted IP Telephony – Evolution, BT Global Services

  • Western Australia Government

    "It was simply a matter of deploying the VOSS software – then the magic happens" Read more

    Jeremy Pestana, GCN Project Manager, Western Australia Government

  • Bucher + Suter

    "We are excited to partner with VOSS Solutions to benefit from a direct relationship with our UC management provider, allowing us to operate an agile cloud communications platform. Overall, VOSS-4-UC empowers b+s and our partners to create dynamic Cisco HCS solution packages." Read more

    Ralph Müller, Sales & Business Development Cloud, Bucher + Suter

  • du Telecom

    "VOSS gives du a meaningful competitive edge, to introduce new collaboration services seamlessly, removing deployment blockers, improving customer satisfaction and maximizing revenues." Read more

    Farid Faraidooni, EVP Commercial, du

  • Node4

    "We provide state of the art technology to help businesses access top-tier collaboration software of the quality and capability they deserve. Therefore, we wanted to be sure we were selecting the very best UC management technology for our new Shared Architecture solution. We were most impressed with the latest version of VOSS-4-UC, together with the VOSS team’s deep technical know-how of latest HCS thinking." Read more

    Mark Phelps, Collaboration Product Manager, Node4

  • Ooredoo

    "The VOSS/Cisco platform completely changes our enterprise telephony business model. Not only can we offer customers a much richer, more flexible service, with a lower cost of ownership, but it allows us to easily upgrade existing customers with new collaboration services." Read more

    Mr Mohammed M Al-Haifi, Ooredoo

  • KCOM

    KCOM selected VOSS to provide integrated contact center management and UC management, from a single web-based portal. "The innovations from VOSS allow us to pass on flexibility, accuracy and speed to our customers' agents and reduce effort required by their customers and long may it continue." Read more

    Stu Smith, Head of Innovation and Development, KCOM

  • Cameo Solutions

    "VOSS is awesome. We use VOSS / CUCDM and it really makes multi-tenant UC easier."

    Ryan Burtch, Cameo Solutions

  • FlexITy

    "VOSS allows us to cost-effectively manage and administer our customers, no matter how complex. By allowing our customers to do their own administration—Moves, Adds and Changes—we free up our voice experts to concentrate on more complex tasks." Read more

    Mark Hayward, Vice President of Operations and IS Deployment, FlexITy

VOSS Customers


Latest from VOSS

  • VOSS Blog

    When Considering a Mass UC Migration, Think VOSS MiGR8-2-UC

    Tom Turrington, Migration Team Lead, VOSS

    Excitingly, it is incredibly busy at VOSS. Sometimes however, it is good to take a step back and have a self-congratulatory look at what we have achieved and some of the recent migration success stories - after all that is why we work so hard!

    We have performed migrations using our inhouse tool - MiGR8-2-UC - across many industries from retailers, through to banks and government organisations. We’ve migrated from legacy PBXs, changed dial plans, and moved devices from one platform to another - all the while accelerating the time to revenue, saving our customers money and minimising the impact on their business by accurately mapping users and the features they are using to the new technologies.

    M2UC-NX in action

    In just the last few major projects we have discovered, extracted, transformed, validated and provisioned millions of devices and users.

    Whilst we continue to work on large projects around the globe, highlights of some recent successes include:

    • A central UK government agency with approximately 100,000 phones and 2,500 analogue gateways all on three legacy Genband CS2K systems utilised across 850 sites. This was successfully transformed and moved onto Cisco Call Managers in 8 months (37 weekly batches) using MiGR8-2-UC.
    • A Middle Eastern telecoms provider needed a migration from Cisco HUCS to HCS. 1011 customers and 19565 phones across 55 UC clusters were processed in 7 weeks using MiGR8-2-UC.
    • A very large UK bank with ~2,400 sites hosting 70,000 phones and ~120,000 EM profiles (1 TDM PBX per site moving to 7 clusters of Cisco Call Managers). Total project length was 8 months with the data migrated in 15 batches. MiGR8-2-UC was used.
    • A telecoms provider in Asia Pacific began with a migration involving 4,000 phones on three clusters spread across 15 sites in 6 countries. All work was completed in 4 weeks from planning to switchover, with the actual switchover taking place within one day. This led to a migration of another customer consisting of 23,000 phones located in 30 sites across 12 countries and following that a large migration of 4,000 sites and 220,000 phones. All devices are merged into a single VOSS-4-UC management platform and MiGR8-2-UC was used for all of the above.

    Current projects are moving at a similar pace, some examples include:

    • A US-based retail chain with over 4,000 stores (one Cisco Call Manager Express server per store) and ~360 users per store all moving to 36 Call Manager clusters using...you guessed it - MiGR8-2-UC! The customer has been in control of MiGR8-2-UC from the start, making confident progress and is now looking to ramp up speed to migrating 100 stores per week.
    • Merging of three UK government agencies totalling 20K devices from three Call Managers into one megacluster. Various complexities include resolving number clashes and modified dial-plans. We are currently on-track to have the migration comfortably completed within the planned two months.
    • Helping our customers transition from various legacy PBXs onto new hardware so rapidly whilst reducing errors would not have been possible without MiGR8-2-UC. Challenges faced during a migration are many and varied but with VOSS’ experience and the adaptability of MiGR8-2-UCwe consistently have a 100% success rate at completing the planned projects and extremely high post migration quality rates.

    With the reduced potential for human error and increased productivity of the migration team that MiGR8-2-UC brings, comes the ability to accelerate the rate of migration, which reduces time to revenue. Using MiGR8-2-UC we have seen time savings of 66% over the full course of a migration compared to using a manual method such as bulk loaders.

    Reduced time to revenue

    Whatever the scenario, MiGR8-2-UC’s ability to accurately handle large, complex cutovers has proven itself time and again. So, if you’re thinking of carrying out a UC migration, talk to VOSS. We can help.

    Useful links:


  • VOSS Blog

    What Does It Take to Transition Your HCS Platform from CUCDM to VOSS-4-UC?

    Maretha Lindeque, Customer Success Service Manager: EMEA, VOSS

    With the end-of-life for CUCDM getting closer, time is running out for CUCDM customers to choose their preferred replacement UC domain management platform, and then migrate their existing estates across to the new platform.

    While VOSS-4-UC may be one of the many options available, this blog post aims to show why moving to VOSS-4-UC is the safest, quickest and best choice, as well as providing a description of what to expect when transitioning from CUCDM to VOSS-4-UC.

    The key benefit of VOSS-4-UC over any of the other choices is stability and continuity for both your end customers and your internal operations, product, and engineering teams. VOSS-4-UC is an evolution from CUCDM rather than a rip and replace strategy, and it embodies the historical strengths and proven production capabilities of CUCDM, overcomes CUCDM’s historic weaknesses, and provides loads of new capabilities. Below is a summarized list of the distinctive features of VOSS-4-UC which have encouraged customers to transition to VOSS-4-UC since the inception of this program*:

    • True multi-tenancy and multi-vendor capabilities
    • A range of platform adaptations that can match the specialised customer requirements
    • Integration with third party tools
    • Powerful API in VOSS-4-UC enables integration with third party applications to provide end-to-end flow-through provisioning
    • Access to VOSS MiGR8-2-UC, direct VOSS support and our extended customer success program**
    • Ease of transitioning to VOSS-4-UC, saving partners money

    Image: VOSS-4-UC: Single Point of Integration

    Once you have chosen VOSS-4-UC, the next question is how complex and impactful will the transition be? The honest answer is that this depends! If you are already on CUCDM Evolution and are happy with your deployment model and your dial plans, it is a simple upgrade that can be done over a weekend. At the other extreme, as VOSS starts engaging directly with partners, we sometimes find that the way the HCS platform was originally deployed and set up is suboptimal. Deployed dial plans may no longer be appropriate and folks are stuck on very old versions of CUCDM Classic. The good news is that VOSS has substantial experience gained transitioning over 1 million seats to VOSS-4-UC already and these successful projects have spanned the entire spectrum of partners with super complex objectives to those that are simple and done quickly.

    Image: VOSS-4-UC User Interface

    Like any other project, when transitioning to VOSS-4-UC - no matter what your business objectives are or which version of CUCDM you move from - the key to success is a) understanding what your final outcome should be, b) planning how to get there, and c) working with an experienced transition partner and proven transition tools.

    CUCDM Evolution

    Transitioning from CUCDM Evolution (versions 10.x and 11.x) - This process is similar to an upgrade to another version of CUCDM, except that you have the added benefit of accessing a multitude of additional features, and direct support from the VOSS Customer Success team.

    As with any upgrade, conducting a due diligence beforehand is critical and vital to a successful process.
    This due diligence should include:

    • Scoping the requirement to understand if any adaptations or integration work is required
    • Finding out what the best upgrade path is to follow
    • Making sure that the system is in a good state and performing maintenance where required and
    • Putting together a MOP which is simple to run through during the upgrade

    Some customers may choose to deploy VOSS-4-UC on a new cluster with new dial plans and to address some of the historic platform configuration issues that they have. This of course provides them with the opportunity to start afresh. This process is more similar to the process required to migrate from CUCDM Classic.

    CUCDM Classic

    Migrating from CUCDM Classic (versions 8.x) to VOSS-4-UC does require more effort and planning, but when done correctly, this migration is also a great opportunity to clean up old data and start from a clean slate.

    As many of our customers can affirm, our global services team has the tools and experience to allow for a smooth and simple migration experience. A typical migration experience with VOSS global services includes:

    • A due diligence on the data and customer dial plan
    • Develop rules to clean your data
    • Using these rules we then extract this data into MiGR8-2-UC, which will allow us to populate VOSS-4UC with the data from CUCDM
    • Further configure VOSS-4-UC and prepare HCM-F
    • Perform an Overbuild using MiGR8-2-UC and our advanced overbuild capabilities

    This process supports batched migrations which allows for multiple customer migrations in a single maintenance window, allowing you to speed up the overall migration process. We also have the ability to migrate customers without the need to migrate dial plans, therefore mitigating the migration risk factor as well as avoiding technical complexity during migration.

    Image: VOSS-4-UC User Interface

    In conclusion, once you have chosen to migrate to VOSS-4-UC from CUCDM, the transition process should not be feared; we will walk the path with you, supporting you every step of the way. As VOSS, we are here to help, and we have a plethora of experienced services available to assist you through this process

    To find out more about transitioning from CUCDM to VOSS-4-UC, please read about the H.O.M.E program or  contact us.

    * This information was summarized using VOSS press releases
    ** Keep an eye out for my next blog which will talk about our new extended customer success experience

    Read how some of our customers have transitioned from CUCDM to VOSS-4-UC:


  • VOSS Blog

    T Minus 19 Months and Counting ...

    ** END OF SUPPORT for CUCDM is February 2021 **
  • VOSS Blog

    Achieving Operational Optimization for Retail with VOSS-4-UC

    Rob Hamlin, Director Solutions Engineering, VOSS

    From my personal experience as a UC deployment specialist, often times I find myself “head down” working on my current projects and rarely get feedback from past projects. This is a twofold issue. Firstly, not being on an individual account team actively interacting with the customer; there is not much opportunity for collaboration. Secondly, most of the solutions that I develop are polished and work well enough that there is little reason for the customer administrators to reach out to me!

    I had the opportunity to attend Cisco Live in June in San Diego, and had the unexpected experience of reconnecting with a couple of customers with whom I have worked in the past years. It is a great validation of the work I do when speaking to customers who have been running VOSS-4-UC for a year or two, who come back with stories of success.

    Not being terribly specific, I worked with a retail customer a little over a year ago to establish his dial plans into the new dial plan model tooling. We worked together for a couple of months to sort out the kinks and add in any new dial plan elements that were important to his way of running his Call Managers. When the VOSS deployment services were complete for the engagement, the retailer’s team was fully perficient in editing/pushing their own dial plan models into Call Managers and converting the retail locations with these tools from a local PBX to centralized Cisco Call Manager.

    At Cisco Live this year I reconnected with the lead administrator of this retailer’s UC infrastructure. He told me stories of converting the chain of 1800+ retail locations from the PBX to Call Manager with great speed and accuracy, beating their required timelines. I was of course gratified to hear his team had achieved the objective we had established from the start of the project. He then added, after converting the stores they then re-deployed the dial plans in all 1800+ stores two more times all within the 1 year since we last talked. This is an amazing feat to have achieved, and completely beyond my expectations.

    In most retail enterprise networks in which I have been engaged, change comes slow. It makes sense since change can introduce interruption and interruption can introduce negative sales impacts. It is beyond amazing and quite gratifying as a VOSS engineer that this retailer embraced the VOSS-4-UC dial plan toolset and became so proficient in the tools use that they were able to re-deploy their dial plan two more times with virtually no help from VOSS Global Services.

    When I first met this engineer he had an entire architecture/engineer team. Every Call Manager was built by hand from the dial plan perspective. By utilizing VOSS-4-UC, he has been able to take that monotonous build work, automate its deployment and through the toolset offload those build actions to lower level engineers within his organization. The dial plan models allow his junior engineers to deploy the Call Manager configuration without higher level understanding of every element they are building in Call Manager.

    I believe, operationally, this retailer could not have achieved this kind of optimization in deployment of so many retail locations without VOSS-4-UC. The costs of manpower to achieve this sort of volume would be cost prohibitive. The retailer now possesses the skills and tools to be able to adapt to their own changing business needs rapidly. The retailer’s lead engineer now also has a less stressful work/life balance and that is priceless.

    Nothing makes my job more rewarding than hearing stories from a customer who is ecstatic with their results. I am glad to have attended 2019 Cisco Live if for no other reason but to have this one conversation.

    To find out more about how VOSS can help you get more from your UC environment, please contact us.


What industry experts say about VOSS

  • "So, please, please go look at a BCOM system, such as VOSS-4-UC, so that you get your money’s worth out of the highly communication-dependent users in your company, while also assuring you are managing the TCO of your communications technologies. It will be worth your time and investment. "

    Marty Parker, UC Strategies

  • "For those who are looking for a single pane of glass to manage a multi vendor collaboration environment, VOSS does as good a job as I've seen so far."

    Zeus Kerravala, ZK Research

  • "[For a collaboration deployment]... one of the biggest keys to success is having the right management and administrative tools in place from Day-0."

    Robin Gareiss, EVP Nemertes Research

  • "…unless automated OSS tools and processes are deployed, cloud-based collaboration will not be successful."

    Dan O'Connell, Research Director, Gartner

  • "Anyone with cloud problems should perhaps turn to VOSS Solutions, which took home the award for its cloud fulfillment platform."

    Mary Lenighan, Total Telecom

  • "Reducing operational time only becomes possible with user profiling and the automation of configuring those profiles. This should be a priority for organizations."

    Marty Parker, UniComm Consulting

  • "A large number of customers are migrating to Skype for Business, but retaining their existing voice infrastructure...the tools that VOSS provide are essential to a successful technology transition and user migration."

    Kevin Kieller, EnableUC

  • "VOSS enables staff to move beyond the challenges of operations to focus on enablement and adoption, while avoiding errors and delays that reduce both user satisfaction and adoption."

    Blair Pleasant, Principal Analyst at CommFusion