case study
Cloud-ready telephony
Rightsizing and modernizing a large-scale voice service
Cloud-ready telephony: A use case
Rightsizing and modernizing a large-scale voice service
The Challenge
A global enterprise with 75,000 users and a complex, legacy UC estate was struggling with a lack of visibility and control over its telephony infrastructure. The company, relying heavily on premise-based Cisco hardware, had an estate of 150,000 phones, 20,000 phone lines, and 20,000 analog gateway ports across 430 sites worldwide.
Managed by a competitor to VOSS, the customer lacked clear insight into which phones were in use, which lines had services, and any equipment that was obsolete. With plans to migrate to a cloud-based UC solution using Microsoft Teams Phone, they needed to clean up their existing estate for a smoother transition.
The Solution
VOSS Discover was deployed to carry out a deep and comprehensive discovery of the customer’s entire UC estate. The platform analyzed 10 million call data records (CDRs), identifying active and inactive devices, lines, and services across the global network. In addition to identifying underused assets, VOSS Discover included:
Overall, the project delivered on the two main objectives of building a firm foundation for the migration, and rightsizing the estate; the latter generating a significant 23% savings to operating costs over the expected three-year horizon.
23% of savings to operating costs were generated by rightsizing the estate
The Findings
Among the many data findings; some key insights included:
17,0000 licensed users were found to be inactive
Over 25% of the physical phones were found to be inactive
Over 30% of the Cisco Jabber soft clients were unused
25% of the 150,000 extension lines were inactive
Out of the 1,500 configured hunt groups, 300 were inactive or had no line members
Out of the 38,000 mailboxes configured, nearly 40% were completely inactive
Over 50 sites were identified as closed but still provisioned with configuration
With this critical data, the enterprise was able to eliminate excess and obsolete equipment, leading to significant cost savings, preparing the estate for a smooth transition to the cloud.
The Migration
The clean data was fed into VOSS Migrate, an advanced migration engine. Using its innovative methodology to discover, extract, transform, validate, and load large volumes of users, devices, and UC data, VOSS Migrate enabled the company to rapidly transition from the legacy Cisco environment to cloud-based solutions, ensuring minimal disruption to operations.
Financial benefits and value delivered
The financial and operational improvements delivered through VOSS Discover and VOSS Migrate ensured the enterprise could transition to a cloud-first UC model with a clean, optimized estate that supports future growth. Benefits included:
Cost savings
The removal of inactive phones and lines led to a substantial reduction in unnecessary expenses, with the customer eliminating thousands of inactive devices and optimizing resource utilization. This cleanup also resulted in ongoing savings related to maintenance, support, and licensing costs.
Streamlined migration
With the clean, up-to-date inventory of phones, services, and users, the migration process to the cloud (Teams) was faster and more efficient, reducing the time and cost typically associated with complex migrations. A smoother transition also meant fewer resources were needed, driving further cost reduction.
Better visibility
VOSS Discover provided a detailed, real-time view of the entire UC environment, allowing the enterprise to make informed decisions on device and service management across all global sites.
Optimized infrastructure
With the removal of obsolete equipment and the streamlining of the UC estate, the enterprise now benefits from a future-proof infrastructure with reduced operational complexity, increased capacity, and fewer legacy systems to manage.
Centralized management
VOSS offered a unified portal for managing the UC estate with real-time reporting, role-based access control, and enhanced visibility, allowing for ongoing management with greater efficiency.
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