I need to install an emergency phone at a hotel's.pool area.

I am having trouble working out class of service
As it is outdoors, I want it restricted to 911.calls.

I would like it to be able to pick up 9th level when it first comes ROH., so they can dial th familiar 911 without the extra 9 first.

If I graded it to do this, could I still flash to get back to the internal DT to call the Operator.

Although it's not really necessary, but I know they will ask, I would like to optionally allow local calls within the local area code. Even better restrict to only call WITHIN Napa.. If I can flash to get to the attendant that would solve this issue.

You can just go to the User > Telephony > Supervisor Settings and check the box for Outgoing Call Bar - this would stop the user from making any external calls except those that use dial emergency features.

To restrict to 911 and local calling area, create a new ARS table with entries such as
1707261XXXX / Dial 3K1 / 1707261N / Line Group
1707265XXXX / Dial 3K1 / 1707265N / Line Group
etc.

Thank Tommy,

You're the best!

BTW, if you want 911 AND local, don't go the Outgoing Call Bar route, but you control it all in the ARS table. Only route 11; (for when they just dial 911 and nothing more), 911 (for when they dial 9-911), put in 11N with Blocked as the action (to prevent 9-1-1XX-XXXX calls going to 911), and your local area code / prefix entries. Everything else will be unavailable.