AT&T MERLIN LEGEND System Reference Manual page 95

Features
Feature Interactions
Account Code Entry
Allowed Lists
Auto Dial
Automatic Maintenance
Busy
Callback
Calling Restrictions
Direct Station Selector
Directory
Disallowed Lists
Display
Forced Account Code
Entry
2-46 Automatic Route Selection
When ARS is used on the system, an account code can be entered before or
after dialing the telephone number.
ARS checks calling restrictions before choosing the route for a call. This
prevents users with restricted telephones from dialing numbers that are not
included on an Allowed List.
The ARS code can be programmed before a telephone number on an Auto Dial
button.
When ARS is used to make an outside call, the system selects another trunk in
the pool when the first trunk is in the maintenance-busy state.
When a call is made via ARS and all possible trunk routes are busy, the call can
be queued for the first route in the pattern. However, if the FRL for the telephone
does not allow the call to be made over the route, the call is not queued.
The use of ARS does not allow users to avoid calling restrictions. The system
checks for outward or toll restrictions assigned to the telephone before it selects
the best route for making the call. If the ARS Facility Restriction Level (FRL)
assigned to the telephone restricts use of the route, the user hears an error tone
and the call does not go through. Since FRL assignment determines pools
selected in each route, a user may be allowed to select a pool via ARS even if
the telephone is restricted from the pool dial-out code.
The LED next to a DSS button for the ARS code is always off.
System Directory and Personal Directory (MLX-20L telephones only) numbers
can include the ARS dial-out code.
The use of ARS does not allow the user to dial numbers on a Disallowed List
assigned to the telephone. The system checks all restrictions before selecting
the route.
Only the ARS dial-out code and the number dialed are displayed. Digits added
by ARS before the dialed number and digits absorbed by ARS are not
displayed.
If Forced Account Code Entry is assigned to the telephone, the user must enter
the code before dialing the ARS dial-out code.