noun
ADJECTIVE
▪ telephone
▪ 24-hour
▪ free , toll-free ( AmE )
▪ customer-service , information , ticket
▪ national
▪ credit-card ( BrE )
▪ suicide ( esp. AmE )
VERB + HOTLINE
▪ call , phone , ring ( BrE )
▪
Call our 24-hour ~ to find out if you have won a prize.
▪ establish , set up
▪
A telephone ~ has been set up to give information about schedules.
▪ have , run
▪
The company has an information ~ that customers can call if they are worried about products.