The Norwegian railway network has used two types of train radio, Scanet and GSM-R. A train radio is a mobile telecommunications network that allows a train driver, maintenance crews and other rail transport officials to communicate with a dispatcher or each other. Scanet was an analog radio system installed on the main lines, limited to electrified lines with automatic train protection, between 1995 and 1999. The implementation left out many lines, which were instead covered by Nordic Mobile Telephone (NMT 450) network.

The lack of a train radio on the Røros Line was a contributing factor to the Åsta accident. This spurred the demand for full coverage. At the same time, the European Union required new systems to use the GSM-R standard, which will be implemented throughout Europe. GSM-R was rolled out between 2004 and 2007 and covers almost the entire network. It was also built to have 100% coverage in all tunnels, which was not achieved with Scanet. GSM-R was first rolled out on lines without Scanet, and then replaced the older system right-out. Both Scanet and GSM-R consist of mobile station in the trains, base stations along the track, and a core network connected to the central traffic control centers. The implementation of GSM-R cost 1.8 billion Norwegian krone.

List The following is a list of all railway lines with train radio. It includes the date of opening of the train radio, including the affected section, and the standard used. Freight-only lines are excluded from the list, even if they may have had Scanet or have GSM-R.

Date Line Section System Sørlandet Drammen–Hokksund Scanet Randsfjorden Hokksund–Hønefoss Scanet Sørlandet Sira–Stavanger Scanet Drammen Oslo S – Drammen Scanet Bergen Hønefoss–Bergen Scanet Sørlandet Hokksund–Kristiansand Scanet Sørlandet Kristiansand–Stavanger Scanet Gjøvik Oslo S – Roa Scanet Roa–Hønefoss Roa–Hønefoss Scanet Østfold Oslo S – Kornsjø Scanet Trunk Lillestrøm–Eidsvoll Scanet Dovre Eidsvoll–Trondheim Scanet Kongsvinger Lillestrøm–Magnor Scanet Vestfold Drammen–Porsgrunn Scanet Bratsberg Nordagutu–Porsgrunn Scanet Gardermoen Lillestrøm–Eidsvoll Scanet Gardermoen Oslo S – Lillestrøm Scanet Nordland Rognan–Bodø GSM-R Nordland Trondheim S – Rognan GSM-R Meråker Hell–Storlien GSM-R Stavne–Leangen Stavne–Leangen GSM-R Røros Hamar–Støren GSM-R Dovre Dombås – Trondheim S GSM-R Flåm Myrdal–Flåm GSM-R Gjøvik Roa–Gjøvik GSM-R Eastern Østfold Ski–Sarpsborg GSM-R Østfold Oslo S – Kornsjø GSM-R Gardermoen Oslo S – Eidsvoll GSM-R Trunk Oslo S – Eidsvoll GSM-R Kongsvinger Lillestrøm–Charlottenberg GSM-R Dovre Eidsvoll–Dombås GSM-R Gjøvik Oslo S – Roa GSM-R Drammen Oslo S – Drammen GSM-R Asker Sandvika–Asker GSM-R Spikkestad Asker–Spikkestad GSM-R Sørlandet Drammen–Stavanger GSM-R Randsfjorden Drammen–Hønefoss GSM-R Bergen Hønefoss–Bergen GSM-R Roa–Hønefoss Roa–Hønefoss GSM-R Vestfold Drammen–Porsgrunn GSM-R Bratsberg Nordagutu–Porsgrunn GSM-R

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