Thanks for your replies. At present most on-call techs here are near the top of band 6 and do a 1 in 6 on-call rota. I believe that under A4C that this would be paid at 4.5% of your salary. Now at the top of band 6 with a salary of approx 31K pa. this equates to £1400 pa. Using Whitley rates the equivalent yearly amount is approx. £730. Dont forget that when you are called out you will be paid at the new A4C hourly rates which now only include time & a half and not double time!

Am I correct in assuming all this or have I missed some important information?