A "call bet" in American Roulette refers to a type of bet that players can place on specific groups of numbers or outcomes rather than directly on individual numbers or positions on the table layout. This form of betting allows players to make combinations that are often not directly adjacent on the betting layout. Call bets typically include options like "neighbour's bet," which covers a selection of numbers surrounding a chosen number on the wheel. Call bets are usually made verbally and are common in European versions of the game, but they can also be placed in American Roulette, where players may refer to them by name. This betting option adds a layer of strategy and excitement to the game, as it allows players to engage with different betting patterns.