If a addon app was being used such as IF Passengers and the inflight failures was active …one type of comm message would be declaring and broadcasting a pan pan pan. Simple messages such as a re-sending of your flight phase and intent to a specific AC would re-advise then of your general position announcements.
Also include something like "Speedbird 445 we show you in close proximity and closing please acknowledge "
then include a few options to choose from such as
- we will proceed on current course
- we will adjust course to increase separation
- we ask that you adjust your course to increase separation
maybe I’m dreaming …have not had morning coffee yet