The Stentofon vandal-resistant substation is tough, durable and resilient and is designed for use in harsh environments. The station has a vandal-proof design with a 2mm stainless steel front, speaker/microphone protection and a steel call button.

The station provides high quality handsfree conversations, using the Stentofon superb wideband audio and loud volume. Together with the durable design, this makes it the communication station of choice for prison cells, doors, gates and emergency points. The station can be placed up to 4 km from the AlphaCom exchange without need for any local power source. The station use the traditional 4-wire interface receiving both power and audio in the same cable.

To provide maximum availability the station comes with advanced supervision functions. The station line test will detect if there is any faults in the network or station electronics. In addition the station support tone test, testing the complete transmission path including microphone and speaker.