Hotline
Commonly, a hotline is a telephone service, which offers specialized information. This information can be about how to deal with certain situations, but it can also be about the products of a company. The term originally came from a telephone which would automatically dial a pre-set number, once the receiver is lifted. Such telephones can still be found alongside highways, where they serve to call for help. Today, very often, hotlines are operated by call-centers.
Hotline Media
A typical non-dial red phone used for hotlines. This one is a prop which is on display in the Jimmy Carter Library and Museum, erroneously representing the Moscow–Washington hotline.
In Finland there are still several signs marking the location of the Moscow–Washington hotline cable. This one is in Forssa. The text reads "Post and telegraph department".