Outside
Yes sby's should be pre notified with start and finish times.
In theory contactable is a 3hr window (say 1800-2100) with minimum rest required before flying.
I think your saying it's a 24hr sby with no times.
Of course I would add that if you were rung on a day off and asked to fly for £1000 then there wouldn't be a problem would there?. Thats me being cynical again!!
