That's exactly what I did. Occassionally I get some help from a contact at Mitel. He may not alwatys be around and I needed this done today, so he basically directed me to the same solution you presented, kwb.
Worked like a charm, and as I said the docs made it look more difficult and lohng winded than it actually was.
Thanks for the replies. We're al good now.
One question, though.
If I ant only one phone to be able to set the system into noght service, than I'll have to assign a spearate COS to that unit, and just enable option 691 on that COS and not the general COS uses by everyone else.
Unless of course there's another option for restricting who can switch to the different services?
Thanks