STSV System

Railway Selective Telephony System VoIP

The system, made in conformity to the RFI specs TT596 and TT595, is an integrated dial-up system with VoIP technology. It is used for communications among the operators responsible for the trains movement and traction control. In particular the system is suitable for the needs of:
  • Movement Manager and Station Manager;
  • On-board staff  (conductors, drivers, etc.);
  • Maintenance staff (technicians, line heads, ecc.).
The system is based on the existence of an IP Ethernet network, with a specific VoIP subsystem to satisfy the RFI organizational structure and procedures and can be easily integrated with existing STSI and STI systems or third party VoIP sytems.


  • the possibility of a fully redundant configurations (High Reliability);,
  • stations interconnection via Gigabit Ethernet and VoIP subsystems,
  • interfacing with legacy systems
  • interfacing to the higher hierarchical levels of the railway telecommunications network,
  • compatibility with systems provided by different suppliers.