If you want to set 9 as hot-line destination, the 9 needs to be added to one of the abbreviated dial lists for the station.
Say for example your analog station is 2000.
change abbreviated personal 2000
Let's say for example--dial code 5 is open, so enter the 9 in that field
Then change station 2000:
at Hot Line Dest, abbr dialing list number, enter 1 (In this example we are saying that List 1 is where the 9 was added- on my forms this is the personal list)
Then on the next line, at dial code enter 5
Hopefully this explanation will help.