Hmmm I tried doing what Carl suggested here last night but sadly this didn't help. Only the lines that were actually connected were showing up as connected. ie (CO25 - CO32 connected all others not connected).

I changed the order that the phones default the lines through to 7(which works)1234568 so now I can dial 9 again to get an outside line. So now dialing 9 gets an outside line.

BUT

There seems to be a difference between the behaviour of the SLT (analogue) and PT (Digital) phones. In that now when I dial 9 on a digital phone, it goes to the next available outside line. But on my analogue phone you hit 9 and it only gets an outside line if no one is on the CO25.

Question is how do I associate a certain CO number to the other numbers in this list?

SO that I can specify,
1 -> CO26
2 -> CO27
3 -> CO28

ETC ???

Any suggestions advice would gratefully received.