This term is used in relation to the different types of bets accepted by the croupier in different gambling games.
Call Bets, Verbal Bets – bets placed on the field by the dealer at the request of the client.
For example, in offline roulette, bets on neighbors or sectors are oral. The croupier takes them from the player and puts them in the right positions. The client has no right to touch these chips until the end of the round.
In online casinos, this name is traditionally used, since all bets are made by players themselves.