Calling into play refers to utilizing or applying something in a situation to get desired results. There are various synonyms for this phrase, including bringing into action, invoking, employing, utilizing, and implementing. Bringing into action refers to initiating or putting something to use in a specific context. Invoking means to call upon or summon the use of something. Employing relates to using a particular skill or tool to achieve a specific outcome. Utilizing means utilizing something at hand that can aid in the process. Finally, implementing means putting a plan or strategy into action to achieve a particular goal. These synonyms can be used interchangeably based on the context of the phrase.