There is some work from Sacks onward on formulating third parties, or trying to get people to give their names (in the helpline stuff), but nothing that helps much with this question.
I'm particularly interested in where the name is not used to select next speaker, for instance, but rather to characterise the form of address.
I'm looking at Joni Mitchell's address to the Isle of Wight festival crowd, which finishes with: "give us some respect man"
What is "man" doing there? It doesn't identify the respondent, but it somehow characterises the relationship.