call in
(ask someone to come and help or do something for you)
- I need to call in an electrician to sort out the wiring in this place.
(to telephone the place where you work)
- Molly called in to say that she was going to be late today.
- Evan called in sick. [=Evan telephoned to say that he would not come to work due to illness]
(to telephone a radio or television station to express your opinions or ask questions)
- Hundreds of viewers called in to say that they enjoyed the show.
(demand to pay back a loan)
- The bank has called in the loan immediately.