Nebula today announces the completion of an 18-month programme migrating 200,000 users from a legacy open-source voice stack to the proprietary CallSwitch One platform.
The initiative has successfully transitioned those end users onto CallSwitch One - a next-generation UCaaS platform built entirely on proprietary intellectual property.
The milestone reflects a broader shift across the telecoms industry, which is witnessing increasing consolidation of voice platforms and a move toward cloud-native UCaaS solutions designed for faster deployment, greater flexibility, and improved operational control.
With over 700 resellers across its channel ecosystem, Nebula's migration programme ensured partners could transition their customer bases with minimal disruption while benefiting from a modern, scalable communications platform for the long-term.
"This project represents a defining moment for Nebula," said Howard Stevens, CEO of Nebula. "We set out to migrate our entire ecosystem away from legacy technology and onto a platform fully built and controlled by us. Completing that journey means our partners now have access to a modern, British-built and supported UCaaS solution that can be deployed and scaled instantly."
Built with an API-first architecture, CallSwitch One enables managed service providers to deploy a full-featured, customisable UCaaS solution without complex infrastructure or engineering resources.
Partners can onboard new customers in minutes using a click-to-deploy model, while maintaining full control over their branding, customer relationships, and recurring revenue streams. The solution also allows resellers to tailor services to specific vertical markets and workflows with its growing list of no-code integrations.
"Large-scale platform migrations are often viewed as complex and risky," Stevens added. "But we've proven with the right technology they can be delivered smoothly. That experience allows us to support managed service providers who are seeking to consolidate their bases and simplify their support structures."
