Function let_talk_then 

pub(crate) fn let_talk_then(key: &str) -> String

“Let them through then” on a held conversation (the card; the proposal’s 3.7): the cell of what holds it now set to at once, on the person’s own row when a card or a number knows them (their card’s first), else on the conversation’s: under do-not-disturb, that layer; during work, Work and Admin together; else the time now. Said in a sentence.