Filter
Top Products
MERLIN LEGENDCommunications System Release 6.1
System Planning
555-661-112
Issue 1
August 1998
Features
Page 4-67System Features
4
For each of the 12 routes (six for each subpattern), you can specify a Facility
Restriction Level (FRL). The FRL is used to refine the route selection process still
further. Each route is assigned an FRL from 0 through 6 (6 is the most restricted).
Each telephone is also assigned an FRL from 0 through 6 (0 is the most
restricted). Callers (extension or remote access barrier code/trunk) can use the
route only if their FRL is equal to or greater than that specified for the route. You
assign a value of 0 to the route if you want all users to access the route, or 1
through 6 to restrict calling for the route to specific users only.
The form for a typical Area Code Table, illustrated in Figure 4–4
, shows a table to
route calls to the 13 area codes served by the northeastern (band 1) WATS lines
beginning at 8 a.m. with no restrictions. The number of the northeastern WATS
pool, 891, is on the first line in the Subpattern A section. The time, 8:00 a.m., is in
the Time of Day space, and an FRL of 0 indicates no restrictions. The 11 p.m. in
the Time of Day space for Subpattern B and Pool 70 in the Pool column indicates
that calls to these area codes are to be routed over the main pool after 11 p.m.
Planning Form Instructions 4
In the Subpattern sections on Form 3f and Form 3g:
1. To direct calls differently according to time of day, write a starting time for
each subpattern in the Time of Day space (for example, 8 a.m.).
2. To complete the Pool column for each subpattern, write the number of the
preferred trunk pool next to the number 1. This is the pool to which calls to
the area codes or exchanges listed in the Area Code/Exchanges section of
this form should be directed.
If you want to designate a backup pool in case all the lines/trunks in the first
choice pool are busy, write the number of the backup trunk pool next to the
number 2, and so on.
3. To complete the FRL column, enter a value of 0 through 6. Assign a value
of 0 if you want all users to access the route, or 1 through 6 to restrict
calling for the route to specific users only. For all except the Default Local
Table, the factory setting is 3. The Default Local Table factory setting is 2.
4. If extra digits at the beginning of the dialed number may be required for the
system to place a call on a particular pool, enter the digits (0 through 9) in
the same row as the pool number, in the column under the Other Digits
heading. (See the Other Digits example below, in Figure 4–5
.)
These special access or account codes can range from a single digit, such as 9,
to a maximum of 20 digits.
Because calls to the 15 area codes shown on Figure 4–4
should be placed on the
cross-country WATS lines/trunks when all the northeastern WATS lines/trunks are
busy, the number of the cross-country WATS pool, 890, is used in both cases. An
FRL of 4 is assigned to restrict some users from using cross-country WATS
lines/trunks.