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Network management features
10-7
Overview
555-233-001 — Issue 2 — November 2000
10 Networking
Facility Restriction Level
Facility Restriction Levels are used to limit user calling privileges for incoming and
outgoing calls. The Facility Restriction Level determines if a call attempt is permitted
and which routes can be used or denied in the routing process. Eight levels of Facility
Restriction Levels can be assigned to telephones, computers, and system management
tools. DEFINITY ONE does not require the Facility Restriction Level to be in an
ascending order when administered in the patterns or preferences through system
management.
When a call is attempted, the system compares the Facility Restriction Level of the
telephone with the Facility Restriction Level of the trunk routes available to complete
the call. If the Facility Restriction Level of the telephone is equal to or higher than the
Facility Restriction Level of trunks, the call is completed; if it is lower, the call is
blocked on that preference and compared to the Facility Restriction Level of the next
route available. If the call fails to match the Facility Restriction Level on the available
preferences, the call may queue for the first available and compatible trunk group
(equal to or higher).
DEFINITY ONE also provides a feature called Alternate Facility Restriction Levels
that allows the attendant to temporarily change the Facility Restriction Levels on
originating facilities to a different set of Facility Restriction Levels. It is used to grant
users greater access to trunking facilities than is normally provided, such as when
charges are lower during evening hours.
Authorization codes
Authorization codes are used on particular calls to temporarily raise a telephone’s
Facility Restriction Level. This feature is useful for those who make calls from
telephones other than their own or from outside the network. If a call you dial is
blocked because the telephone’s Facility Restriction Level is too low, you can enter
your authorization code. If the Facility Restriction Level associated with the
authorization code is equal to or higher than the Facility Restriction Level of the trunk
facilities required to place the call, the call is then completed. Up to 5,000 different
authorization codes will be in effect for your system at any one time. Using
DEFINITY ONE’s system management tools, you can assign authorization codes and
change their associated Facility Restriction Level and network access permissions.