AT&T MERLIN LEGEND Communications System PBX System Planning Manual page 142

Features
Night Service with Time
S e t
When you select this option, people who need to make calls after hours must
first enter a password. People who do not know the password can dial only
emergency numbers that you specify, such as the telephone numbers for the
police and fire departments. Calls to non-emergency numbers do not go
through unless the password is entered first. You can include up to 10
telephone numbers on the Night Service Emergency Allowed List. Each number
can have a maximum of 12 digits.
Once you specify that a password is required, the password applies to all
telephones in the system when Night Service is activated at any operator
position.
If users need to make after-hours calls and prefer not to enter a password, you
can set up an Exclusion List that excludes those users from the password
requirement. Telephones assigned to the Exclusion List keep the normal call
restrictions, if any are assigned, when Night Service is in effect. However, these
telephones are not protected in any other way from unauthorized after-hours
use.
Planning Form Instructions
On PBX System Form 7b, Night Service - Outward Restriction:
1. Write the password in the "Password" space. The password must be four
digits and can include the number 0 to 9 in any combination.
Note: To keep the password private, do not fill in the blank.
2. Write the nubers to be included in the list under "Telephone No." In the
"Emergency Allowed List" section.
To exclude users from the password requirement, complete the "Exclusion
List" section:
3 . Write the extension number for each telephone in the "Ext. No." column.
(Refer to Form 2a.)
4 . Write each user's name in the "Name" column. (Refer to Form 2a.)
The Night Service with Time Set option allows you to set the system to
automatically turn Night Service on and off at the times and days of the week
you specify. This ensures that after-hours calls are handled properly even if an
operator forgets to turn on Night Service.
Operators can still override the timer and turn Night Service on or off manually.
The feature can also be deactivated through system programming for special
conditions, such as a mid-week holiday.
System Features 4-37