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 Provisioning & Management with a Single Pane of Glass VOSS-4-UC Provisioning & Management with a Single Pane of Glass VOSS-4-UC ServiceNow Integration VOSS-4-UC ServiceNow Integration Contact Center Management Contact Center Management VOSSBot VOSSBot VOSS-4-UC and Cisco Hybrid Spark VOSS-4-UC and Cisco Hybrid Spark 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-4-UC Modifying Users with Subscriber Relations VOSS-4-UC Modifying Users with Subscriber Relations

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

    Migrating Large Enterprise Customers to VOSS-4-UC

    Tim Jalland, Senior Proposition Manager, VOSS

    Following on from this week's launch of the fantastic M2UC, I wanted to share some insights into a recent migration project from an early adopter customer who chose to use M2UC.

    Heavy Duty Lifting

    When it came to upgrading to a new cutting edge telephony and UC solution, it was no surprise that a large UK government customer came to VOSS to manage the process. The incumbent system was public-facing and provided critical business communications to customers, suppliers and over 100,000 employees across 1000+ sites.

    The approach taken was to absorb the existing configuration and design, transform as required, and then migrate in-situ on the new system – a VOSS approach known as Synchronization and Overbuild – rather than build a new / separate system.

    The process had to conform to some strict rules:

    • The system was very much in use - so change windows must be kept to days not weeks
    • The whole migration process had to be repeatable, robust and accurate (automated)
    • The roll-back had to be practical, tested and well communicated
    • Existing numbering plans and feature usage (such as phone settings, services, hunt groups) had to be transitioned fully to minimize the impact to users of the service
    • No service data was allowed to leave the data center, and access had to be RBAC-protected
    • Disruptive changes had to be kept to a minimum and always made out of hours

    The underlying system was a multi-cluster Cisco Call Manager (5 x clusters) with an over-arching SME cluster (providing PSTN breakout and access to Unity voicemail) and managed from Cisco CUCDM8. The ask was to migrate this to VOSS-4-UC whilst also continuing to provide telephone services without a blip.

    Six Important Points

    With an estate of this size, a "big bang" approach was not appropriate (too much risk) and a staged approach was followed. Six important points were agreed to, to  ensure all teams were aligned and the project – which was run on a tight timescale (3 months) – was successful.

    1. Assign model offices (test sites) and practise: the preparation, the migration, the roll-back, the training, and the configuration. Check and practise everything. Then check it again.
    2. Start with a single live pilot site – significant enough to identify areas that need further tuning, and allow sufficient running-in time for the site. Design inter-calling between old and new dial plans. Collate feedback and then retest in the model office.
    3. Transition cluster by cluster; more complicated in that each cluster in turn will migrate to the new system but more manageable in terms of resources and risk. Across each cluster, keep the change window to under 5 days for all common MACDs.
    4. Automate as far as possible – manual efforts rely on certain individuals, allow numerous errors to creep in, humans become tired at the end of overnight change windows and manual operations are not reliably repeatable. Automation and AI tooling such as M2UC from VOSS form the foundation for a successful migration of this scale.
    5. Test pre-migration and post-migration and count the number of end points registered – to validate everything that was working beforehand is also still working after the migration.
    6. Accommodate change – the project will change as it moves through but keep the end goal in view and expect and accommodate changes as part of the weekly task planner.

    VOSS Overbuild Migration Architecture

    The outcome? This was another successful migration for VOSS, with the customer on a solid foundation for the future.

    To find out more about VOSS Migration Services and the VOSS M2UC Migration Tool, please contact us.

  • VOSS Press Releases

    VOSS Unveils M2UC - Latest Generation of UC Migration Software

    Enables fast, efficient and error free migration to latest UC solutions available
  • VOSS Blog

    New Business Automation Capabilities Coming to VOSS-4-UC

    Keith Bareham, Director Solutions Engineering, VOSS

    Constantly seeking opportunities to implement increasing levels of automation, many of our VOSS customers are integrating their UC and VOSS UC management platforms with LDAP servers. This allows automation of user creation and deletion in the UC domain, based on data available in the LDAP server. The “top-down” deployment model synchronises VOSS-4-UC directly with the LDAP server. Whilst this is a powerful method due to its access to the full LDAP data and possible subsequent service provisioning, it is not the method used historically by many customers. The more commonly used model has been one where the CUCM is directly synchronised with the LDAP server. In this “bottom up” model, this data is then synchronised into VOSS-4-UC.

    Once the data has been passed into VOSS-4-UC, the user may then be managed as an existing user in the normal way. However, the synchronisation of data from the LDAP server to CUCM and from CUCM to VOSS-4-UC occur on a scheduled basis, and this leads to uncertainty about where the data exists at any point in time. Specifically, the user data for a new user may be in CUCM, and if so may be in VOSS-4-UC but this will depend entirely on whether a synchronisation has occurred since the LDAP data was changed. Due to this uncertainty, the results of attempting to add services to this new user can give varied results.

    The good news is that VOSS-4-UC user operations enhancements bring predictability to these operations.

    The following cases now offer an improved and consistent user experience.

    1. In this case the user has been added to the LDAP server, but has not yet synchronised into CUCM. When we attempt to add the user using Quick Add Subscriber, the user will be added to CUCM as a local user, along with any services such as phones that were requested. A new hidden flag is available for API and bulk load operations that indicates that the user must only be processed if the synchronisation has occurred. This avoids the creation of a local CUCM user where this may not be desired due to local CUCM authentication preventing access to services with the LDAP credentials.
    2. In this case, the user has been synchronised into CUCM but not into VOSS-4-UC. The attempt to add the user using Quick Add Subscriber will cause a targeted sync to import the new user data from CUCM into VOSS-4-UC. If this is successful, the user data will be created in VOSS-4-UC, and the user moved to the site hierarchy before adding any UC services requested.
    3. In this case, the user has been synchronised into CUCM and into VOSS-4-UC but not moved to the site hierarchy. The attempt to add the user using Quick Add Subscriber will cause the user data will be created in VOSS-4-UC, and the user moved to the site hierarchy before adding any UC services requested.
    4. In this case, the user has been synchronised into CUCM and into VOSS-4-UC, and also moved to the site hierarchy. The attempt to add the user using Quick Add Subscriber will cause the addition of any UC services requested.
    5. In this case, the user has been synchronised into CUCM and into VOSS-4-UC but moved to a different site hierarchy. The attempt to add the user using Quick Add Subscriber will cause the user to be moved to the correct site hierarchy before adding any UC services requested, provided there are no phones, devices profiles or SNR associated with the user. If any of these services exist, the request is rejected.
    6. The final case involving Quick Add Subscriber finds the user synchronised into the wrong CUCM cluster in a multi-cluster customer. In this case, the correct user is imported and moved and the home cluster flag is updated to reflect the true home status of the user.

    In other operations, further resilience has been introduced. For example, when adding a phone, it is possible that the phone has already been connected and auto-registered with CUCM. When adding a phone, a check is performed to find out whether the phone is present on CUCM and whether it is associated with another user. If available and of the correct phone model, the phone will be added as requested.

    These enhancements will provide an improved user experience for GUI and bulk loader users, and API application users by automatically resolving issues created by spurious platform data.

    Please contact VOSS for further information and availability.


  • VOSS Blog

    Security Advisory

    Software Version Advisory - Ubuntu 14.04 LTS EOL

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