This is about chats, not calls though - you can look at the context and make the same determination. Even for calls, "hey, do you have a sec to help me trouble

This is about chats, not calls though - you can look at the context and make the same determination. Even for calls, "hey, do you have a sec to help me troubleshoot the CDN setup?" is way better than "hello," followed by a call if you respond.