Our Billing Experts

Creating transformational bill experiences takes more than technology.

We don’t just know billing...we’ve lived it. Our unique team of domain experts brings decades of real-world experience solving complex billing challenges for some of the world’s largest companies.

“I’m one of many at Calvi with deep billing expertise. Over two decades at Deutsche Telekom (DT), I worked across billing, order-to-cash transformation and revenue assurance, eventually leading the architecture of a next-gen billing system. I later helped shape DT’s global billing strategy across 12 countries. After collaborating with Calvi as part of the ETIS industry forum, I joined the team to support our customers in reimagining the customer bill experience.

My journey from enterprise telco to Calvi consultant reflects the real-world experience we bring to every customer engagement.”

Philipp’s Story | Calvi Billing Expert

“I’ve been in the telecom industry since 2000, working across interconnect billing, roaming, revenue assurance and fraud, before becoming Billing Director at Tele2. I’ve always focused on making bills accurate, timely and understandable, which is no easy task in a landscape of fragmented systems, complex handoffs and constant customer pressure.

While mapping our billing architecture at Tele2, it became clear we needed to simplify and consolidate. We chose Calvi to lead our bill experience transformation because they could handle everything end-to-end: bill portals, e-invoicing, communications and APIs.

I bring the scars and lessons from managing complex billing environments, and I’m here to help others turn their billing chaos into clarity.”

Mischa’s Story | Calvi Billing Expert

Unparalleled Domain Expertise

Our professional services team brings decades of real-world billing transformation experience. From optimizing bill journeys and preventing bill shock to accelerating payments and cutting call volumes, we deliver proven best practices that drive results.