For 20 years, Nationale Theater Kassa (NTK) has partnered with Sound of Data to support theatres across the Netherlands with customer contact and reservations. What started as a solution for phone accessibility has grown into an integrated, omnichannel service with personal contact remaining at its heart.
Theatres faced a familiar challenge: how do you deliver consistent, high-quality service to visitors without every theatre having to organise it themselves?
Twenty years ago, the focus was entirely on telephony. Reservations and enquiries came in almost exclusively by phone. For individual theatres, managing this independently was inefficient and costly.
NTK saw the opportunity to centralise this but needed a reliable, scalable partner to make it happen.
The partnership between NTK and Sound of Data began with a clear focus: facilitating telephony for theatres across the Netherlands. At a time when virtually all reservations and customer queries came in by phone, accessibility was everything. By offering (premium) phone numbers and handling customer contact centrally, a shared service emerged that relieved theatres of operational burden and delivered economies of scale.
As the market evolved and digital channels grew in importance, the nature of customer contact changed too. Online booking via websites became the norm, shifting telephony from primary channel to a valuable complement. Particularly for complex enquiries, special requests, and personal support where digital processes fall short.
To support this growth and change, the service was expanded with a centralised telephony solution based on 3CX. This brought all inbound and outbound customer contact together in one place, integrated with the various ticketing and back-office systems used by theatres. NTK’s team can now switch efficiently between systems and assist customers quickly whether it’s a new booking, a change, or a question.
Today, that development continues with the addition of new communication channels. WhatsApp is currently being implemented as a direct, low-barrier channel to support visitors before, during, and after their theatre visit. At the same time, this opens the door to a more experience-driven form of communication: visitors can be engaged before the performance. Imagine a character from the musical sending them a message in advance. The theatre experience no longer starts in the auditorium. It starts long before the curtain rises. The audience is drawn into the story in a personal, unexpected way.
One thing that hasn’t changed in all these years is the shared goal: delivering the best possible service to theatre lovers across the Netherlands. We do that through a smart combination of technology and human contact.
Although the majority of reservations now happen online, personal contact remains essential. Especially for complex bookings, last-minute changes, and specific questions, NTK makes the difference. The combination of digital efficiency and human support creates an optimal customer experience, exactly what theatres need.
The result of this journey is more than just efficient service delivery. Over the past twenty years, a stable and scalable solution has emerged, with NTK now supporting dozens of theatres through centrally organised customer contact across a smart mix of channels. Alongside that, a partnership has grown. One built on continuous improvement, responsiveness to a changing market, and mutual trust.
Led by Stefan Stolk, a dedicated team works every day to deliver the best possible service to theatre lovers throughout the Netherlands. A partnership we’re proud of and one that, after twenty years, is still very much in motion.