hotline
//ˈhɒtˌlaɪn//
Noun
hotlineSingular
hotlinesPlural
1
A direct telephone line set up for a specific purpose, especially for emergencies or to provide information or assistance.
If you need help, please call our 24-hour hotline.
2
A direct communication link between heads of government for use in emergencies.
The hotline between the two countries was established to prevent misunderstandings during crises.