An evolution is reshaping how telecom operators manage internal systems and external partnerships. Beneath the surface of customer-facing transformation lies a technical shift that could redefine the pace and cost of innovation, the move from synchronous to asynchronous APIs.
For many operators, legacy system architecture has long relied on request-response models. These synchronous APIs are tightly coupled and depend on immediate replies, which creates fragility and latency when operations span multiple platforms.
Asynchronous APIs reverse that logic. A request triggers a process but doesn’t force the system to wait for it to finish. The system simply acknowledges receipt and continues operating, while the result is delivered back separately, either through a callback or a subscription mechanism.
Cerillion plc (LON:CER) is a leading provider of billing, charging and customer management systems with more than 20 years’ experience delivering its solutions across a broad range of industries including the telecommunications, finance, utilities and transportation sectors.



































