call in

verb

1. summon to enter"The nurse called in the next patient"
2. summon to a particular activity or employment"Experts were called in"
3. pay a brief visit"The mayor likes to call on some of the prominent citizens"
4. take a player out of a game in order to exchange for another player
5. make a phone call"call in to a radio station"
6. demand payment of (a loan)"Call a loan"
7. cause to be returned"recall the defective auto tires"