ring inphrasal verb
Definition of ring in
1 : to celebrate the beginning of (something, such as a new year) How did you ring in the new millennium? We're going to New York to ring in the New Year.
2 chiefly British : to make a telephone call to a place (such as the place where one works) She was feeling too ill to go to the office yesterday so she rang in sick.
3 : to make a telephone call to a radio or television program Thousands of people rang in to make a donation.