TransNexus is a telecom software provider that uses Redis Enterprise as a critical component of its cloud-based product ClearIP, which simplifies complex functions like preventing robocalls and enabling least-cost routing. The company's call processing typically takes 20 milliseconds to complete, with the aim of making users unaware of the process. TransNexus' design focuses on reliability, security, and high performance, leveraging a microservices architecture to scale as needed and maintain reliability. Redis acts as a real-time database, storing configuration data and ensuring instant responses to meet aggressive application requirements. It also serves as an intermediary queueing system, assigning jobs to cloud servers, and a historical information store for call histories and accounts. The company's reliance on Redis is so critical that it considers the database the "number-one most important database" in its operations.