Reserve month as we were told was supposed to be rostered once every 10-12 months for one month. I know friends who've had it twice in the last year. I haven't had it yet. Luck of the draw I guess. A reserve month is basically a month of available days that can be changed into trips when and if needed.
You don't get standby every other month. You get standby days coming through on your roster where you are basically "on call" for a duty in case someone calls in sick. But these are random days built in to your roster not a whole month of it.