I know I've read this recently, but I'll be darned if I can find it.
If the BB is all-in for less than the established BB, is the minimum call/raise the amount that the BB has or is it the established BB?
Example: Blinds are 400/800 and the BB is all-in for 300, what is the minimum to call and what is the minimum raise?
Also, is there any difference between the TDAs position and Robert's Rules on this?