noun
train telephone; railway radiotelephone
Refers to a telephone service available on trains, historically a radiotelephone system. Now largely obsolete with the spread of mobile phones.
かつて新幹線には列車電話が設置されていた。
In the past, train telephones were installed on the Shinkansen.
列車電話は携帯電話の普及により廃止された。
Train telephones were discontinued due to the spread of mobile phones.
Compound of 列車 (train) and 電話 (telephone).