How TMC kept every number and beat its telephony deadline with ROGER365.io

About TMC

TMC, The Member Company, is a global technology consultancy founded in Eindhoven in 2000. It calls its people employeneurs: engineers, scientists, and digital experts who pair deep technical skill with an entrepreneurial mindset. Around 5,900 of them work across manufacturing, semiconductors, electronics, energy, and pharmaceuticals, on projects for clients such as ASML, Philips, and Bosch. TMC runs on a distinctive model of long-term contracts, individual profit sharing, focused business cells, and its own YOUniversity training platform. It follows a cloud-first strategy, running every application in the cloud so it can scale as fast as it grows.

The Challenges

Towards the end of 2022, TMC hit a hard wall. Its telephony provider gave notice that service would end, with a firm cut-off date of 31 December. Miss it, and the phones would go dark. The pressure was real. TMC is a fast-moving consultancy whose employeneurs call candidates, clients, partners, and colleagues all day, so losing telephony was not an option. The replacement had to do everything the old system did, keep every existing telephone number, and support flexible hybrid working, all within weeks. TMC also wanted to stop running telephony as a separate island. Keeping phone systems apart from Microsoft Teams, where staff already worked, added complexity and slowed the back office. The company had grown fast, its headcount doubling in four years, and the old setup could not scale with that pace or with planned expansion into new countries. TMC needed a communications platform that was simple to run, quick to deploy, and built to grow.

“Because the organization is developing fast, we want to be scalable and set up flexible processes and workflows. The number of employees has doubled in four years, and we still need to expand into new countries.” - Ivo Muller, IT Director, TMC

The Solution

TMC wanted simplicity, and a platform that fit the Microsoft world its people already lived in. By building communications on Microsoft Teams, it could fold telephony and customer contact into infrastructure it already ran, keep maintenance light, and support international growth. Rather than one vendor, TMC chose a partnership where each supplier played to its strength: Yielder provided the telephony and designed the overall solution, oneCentral supplied network and hosting, and ROGER365.io delivered the Contact Center. A Yielder system architect designed the setup so every call to TMC routes into Microsoft Teams, with agents able to route calls to whoever is available. Despite early doubts about the tight timeline, the whole project was live in a few months, before the 31 December deadline, and TMC kept all its existing numbers. The Contact Center is quick to set up, and TMC's team runs it themselves. It integrates with Salesforce, so sales conversations carry the context agents need, and its pricing is predictable, with no per-user charge, which suits a company that scales fast.

The Results

The first win was simply making the deadline. TMC moved off its old provider and went live before 31 December, with no gap in service and every phone number intact. The migration that looked risky on paper turned out to be smooth: the full solution was in place within a few months, set up correctly in one go. Day to day, the back office now works faster and with better quality, because agents handle calls, queues, and routing inside Microsoft Teams instead of a separate phone system. Calling agents, who spend their days reaching candidates, clients, and partners, are far more satisfied with their tools. Sales benefits too: with Salesforce integrated, customer context sits next to the call. For IT, the gains are structural.

The contact center runs inside the Microsoft 365 tenant TMC already secures and governs, so identity, compliance, and administration stay in one place, and the platform scales as the company grows into new countries. TMC's own team manages the environment, and staff work flexibly from any location.

See these results in your own Microsoft 365 environment. Start a free trial!

“The cooperation and quality of the solution are perfect. All steps and the total set-up went well, in one go. We now have extremely satisfied calling agents, and they matter, because they communicate constantly with partners, candidates, customers, and employees.” - Ivo Muller, IT Director, TMC

Lessons Learned

TMC's team was openly hesitant about the timeline. Replacing telephony and standing up a contact center before a hard December deadline felt ambitious, maybe too ambitious. In hindsight, that fear was the main obstacle, not the technology. The switch went through in one go, and the part that looked riskiest, the migration itself, turned out to be the smoothest. The practical lesson: when a credible partnership commits to a date, trust it and move, rather than letting a tight timeline push the decision later. Splitting the work across specialists in telephony, hosting, and contact center made the speed possible.

The Future

TMC treats this platform as a starting point, not a finished project. Its staff already like the new setup and are lining up features to add next, from richer reporting to deeper integration between the contact center and the applications they run in the cloud. Microsoft Teams stays the foundation, with room for Power Platform automation on routine call handling and AI for transcription, summaries, and smarter routing as those capabilities mature. Because everything runs cloud-first and scales on demand, TMC can extend the same model into new countries as it grows, without rebuilding.

Ready to see how ROGER365.io and its partners can transform your customer communications? Book a demo and experience the future of customer engagement today.