Just checked and the Highway Code uses the term Temporary Maximum Speed Advised which is different is different to Advisory Speed Limit. That term does imply there is a new speed limit and we are advising you.
It uses that same term for corner dots and circles
https://www.gov.uk/guidance/the-highway-code/light-signals-controlling-traffic
This driving test website repeats what I have always thought
http://www.drivingtesttips.biz/advisory-mandatory-speed-limit-signs.html
It uses that same term for corner dots and circles
https://www.gov.uk/guidance/the-highway-code/light-signals-controlling-traffic
This driving test website repeats what I have always thought
http://www.drivingtesttips.biz/advisory-mandatory-speed-limit-signs.html