Reserve Liability in days per year?

[John W]

When discharged to the Reserves in 1907, how many days per month/year would a Reservist have to put in, and what would his bounty be for this. This is for someone who'd served three years in the Regs, with the balance of 9 years Reserve Service remaining. Also, what duties/training would have been carried out on the days attended - or was it just attend, confirm your address, etc only?

Many thanks