A parley (from French: parler – "to speak") is a discussion or conference, especially one designed to end an argument or hostilities between two groups of people. As a verb, the term can be used in both past and present tense; in present tense the term is referred to as parleying. In some cases, opposing parties would signal their intent to invoke parley by using a white flag, however the use of a white flag to invoke or request parley is not considered mandatory.
https://en.wikipedia.org/wiki/Parley