Instead of looking for a ‘brand new’ cockpit communication to meet the ‘sterile cockpit’ concept, we could look at what previously has been done successfully
The so called sterile cockpit below 10,000 ft was brought in to stop non-operational talking distracting flight crews in the busy zone below 10,000 ft.
Of course, this concept would never have got off the ground had crews exercised proper flight deck discipline.
Nature abhors a vacuum (quiet cockpit) and so crews are now told to verbalise what they see on the instrument panel, MCP and FMA visual displays. The theory of the sterile cockpit is now replaced by fly-by-mouth.