Question for real world pilots on procedure for IFR clearance read-backs

In the US, previously mentioned CRAFT mnemonic is taught.

I doubt we will see this on the airliners, though I don’t doubt its usefulness, especially for non-professional pilots (ATPs running back and forth for the airlines are less likely to miss a call due to Crew Resource Management, sterile cockpit procedures and the push to cockpit data link communications - CPDLC). Also, more tech = more $.

There are some very congested parts of European airspace that have driven a need to non-radio communications even at altitude (Maastricht). It’s even more congested than LA or NY TRACON.

It was so busy that back when I was a design guy at one of the airplane manufacturers, there was a European rule to get even GA aircraft on datalink. That was called Link2000+.

In the US, airliners are using the FANS system for datalink. It can be used at airports and ATC facilities that support it. Many do not, since in US, data link is not yet ubiquitous. You can get PDC - predeparture clearance through there as well.