This section provides information about how the Facility Restriction Levels (FRL) feature behaves in certain circumstances. Use this information to ensure that you receive the maximum benefits of Facility Restriction Levels under all conditions. The following considerations apply to Facility Restriction Levels:
Trunk groups
Use the Route Pattern screen to assign the FRL to a trunk group.
You can use the same trunk group in more than one route pattern.
The same trunk group can have a different FRL in a different pattern.
You can assign the same FRL to more than one trunk group.
General access
Be consistent in FRL assignments. Always use FRL 0 or FRL 1 for a trunk group that everyone can access.
Route patterns
If you use a range of 0 through 5 in one route pattern, use the same range in another pattern, if all users can access the first-choice route.
Assign a Class of Restriction (COR) with an FRL of 0 to a group of users to restrict the users to local calls. Use any other number for the FRL on your first-choice route pattern.
Remote access barrier codes
You assign FRLs for remote access users through the remote-access barrier codes. The simplest way to assign these FRLs is to duplicate the on-premises FRLs, and then relate the appropriate barrier code to users who use remote access. For more information, see Remote Access.
