voestalpine Signaling Siershahn GmbH is a a subsidiary from voestalpine Railway Systems, the global leader for railway infrastructure system solutions. Founded as SST Signal & System Technik in Germany in 1997, voestalpine Signaling Siershahn is a specialist in railway diagnostic and monitoring technologies. Our innovative checkpoint solution allows smart rolling stock monitoring, customized to individual requirements. Based on an interconnected structure of PHOENIX hardware and software we have developed a world leading monitoring suite for intelligent maintenance. With branch offices in the Netherlands and Australia we are a reliable partner for customers all over the world. Our customers include a variety of users: train operating companies, freight operating companies, metro operators, rolling stock maintainers, mining companies, rail infrastructure managers and maintainers.