Heritage railways do, but not to the extent of NR. We don't repeat everything back, yet we always come to a clear understanding.
Unfortunately the mental attitude these days is that a robotic repeating back of a message demonstrates and understanding, which is clearly a nonesense to all but those who have been blinkered by such thinking.
What they do not comprehend is that repeating back does not if itself demonstrate an
understanding of the underlying message. Were that to be the case we would still not be having incidents where poor communication was an issue.
Having a more formal protocol is fine but simply extending the blanket repeating back of instructions has now lost much of its purpose when people are required to repeat back extraneous information.
Example :
1A04 sooc at RY183
Signalman : Rugby PSB (panel xx) Signaller (smith) speaking
Driver : Hello Rugby PSB (panel xx) Signaller (smith) this is the Driver of One Alpha zero four speaking to you from signal Romeo Yankee one eight three.
Signalman : Hello Driver of One Alpha zero four speaking from signal Romeo Yankee one eight three. I have a track circuit failure and I will require you to pass signal at Danger Romeo Yankee one eight three when I have given you the necessary instructions. Please repeat this message back to me.
Driver : You have a track circuit failure and you will require you to pass signal at Danger Romeo Yankee one eight three when you have given me the necessary instructions.
Signalman : Driver of One Alpha zero four speaking from signal Romeo Yankee one eight three, when I authorise you, you may pass signal Romeo Yankee one eight three at Danger, proceed at caution and obey all following signals. Please repeat this back to me.
Driver : When you authorise me, I may pass signal Romeo Yankee one eight three at Danger, proceed at caution and obey all following signals.
Signalman : Driver of One Alpha zero four speaking from signal Romeo Yankee one eight three, you may pass signal Romeo Yankee one eight three at danger,proceed at caution and obey all following signals.
Driver : I may pass signal Romeo Yankee one eight three at Danger, proceed at caution and obey all following signals.
Signalman : That is correct Driver
Now contrast this with what would have happened 20 years ago
Signalman : Rugby PSB
Driver : Hello signalman. Driver 1A04 at your RY183 signal.
Signalman : OK, I have a track circuit failkure ahead, pass RY183 signal at Danger, proceed at caution and obey all following signals.
Driver : Pass RY183 signal at Danger proceed at caution and obey all following signals, OK mate.
Signalman : Yes that is correct Driver
Driver : Righto, mate.
Now a couple of points.
1) If 1A04 is stopped out of course at RY 183 signal and the spt rings rings, there is a better thasn evens chance that it is the driver of 1A04. The same cannot be said of a telephone call received on the normal telephone
2) If the Driver is speaking from and identifies the signal which matches where 1A04 is then it has been established without doubt which train is involved, which signal is involved, and where the train is.
3) Because the spt goes directly to the PSB controlling the signal, there is an absolutely minute chance that it will go anywhere else, and in any case the track circuit/signal number and train reporting number will not match up. The same cannot be said of a telephone call to a signalbox on a mobile or other dial out phone. There is already a case of a Driver having contacted a signalbox which had the relevant signal id letters, except it was the wrong signalbox
4) The safety critical part of any telephone conversation as above is the part concerning the passing of the signal at danger,
and no other. All other information is extraneous and nowadays in many cases completely irrelevant.
Pass RY183 signal at Danger, proceed at caution and obey all following signals is the only part that is safety critical need be repeated.
The fact that someone will inevitably question the wording of the first scenario will demonstrate without question just how out of control the whole situation is.