My school does a version of "Ready to Learn" basic details here:
www.sec-ed.co.uk/best-practice/a-simple-whole-school-behaviour-system/
It involves having clear expectations, issuing one warning per lesson if they aren't met and a full day in isolation plus afterschool detention if they disrupt learning a second time.
This has been implemented in several schools in my area, however not all get great results from it because they don't implement it consistently.
The key factors for making it work seem to be:
all staff need to be behind the idea, particularly SLT as they will have to handle the complaints from parents who don't like the system;
clear and consistent expectations (it is not ok to disturb learning by calling out, talking over the teacher etc);
clear and consistent implementation of the policy (warning needs to be given clearly; pupils can't talk their way out of the consequences)
time spent in isolation is not fun - pupils work in silence & must produce sufficient work each period;
if pupils "fail" isolation and are sent home they will need to redo isolation the day they return to school before going back into lessons.
If done properly this completely changes the behaviour in a school and enables teachers to teach to the best of their abilities.
If done poorly - watered down, inconsistently applied, SLT don't support teachers etc it makes very little difference to behaviour and annoys staff, pupils and parents alike! I've experienced and observed it done both ways!
I don't want to completely out myself on here just in case, but I could suggest some schools (via PM) that I believe are doing this well if you or your SLT want to see it in action.