Sweden’s largest passenger rail operator SJ is consolidating its communications estate with Telia to accelerate 5G, IoT, and crisis-readiness across trains, stations, depots, and corporate operations. The partnership positions Telia as SJ’s primary provider for nationwide mobile and fixed communications, combining public 5G/LTE coverage with managed services that support day‑to‑day rail operations and passenger experience. For passengers, more consistent Wi‑Fi backhaul and seamless digital services are the immediate wins; for operations, the prize is reliability and faster recovery when incidents occur. European operators are scaling beyond discrete connectivity pilots toward platforms that unify onboard systems, station sensors, and back‑office analytics.