Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 494

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
Primary Rate Interface (PRI) and T1
that DID calls are not permitted to reach (for example, pool access codes, group
page codes, line access codes, or the ARS access code), the call is routed to the
programmed destination for unassigned DID calls (unless the backup is a fast
busy tone).
Table 32
incoming calls through the Megacom 800 service are delivered to an extension
whose dial-plan number is 1234. Entry 15 would be skipped because No Service
is specified.
Table 32.
Entry
Service
# of digits in CdPN 7
Example #
Pattern
Digit deletion
Digit addition
When routing by dial plan is used for an incoming call, if the programmed service,
number of digits in the Called Party Number (CdPN) and patterns match those
associated with the incoming call, the appropriate digit deletion and addition are
performed. The process is as follows:
1. The programmed service is compared with the B-channel service, if
supplied. A match is found if the two services are equivalent or if the
programmed service in the Dial-Plan Routing Table is All Services. If a
match is found, the system continues to search the entry. If no match is
found or if No Service is specified, the system skips the entry and proceeds
to the next one. If no service is supplied, the call is matched to No Service
table entries.
2. The programmed number of digits is compared with the number of digits in
the actual Called Party Number. A match is found if the two numbers are
equivalent or if the programmed number of digits is 0. If a match is found,
the system continues to search the entry. If no match is found, the system
skips the entry and proceeds to the next one. If the programmed number of
digits is 0, any number of digits in the Called Party Number is acceptable.
3. The programmed pattern is compared with the digits associated with the
incoming call. If the pattern matches, the entry is tagged as a possible best
match for the incoming call. It is possible that more than one entry can
match the incoming call; the entry chosen is the one that matches on the
greatest number of digits in the pattern. For example, if 555-2000 is the
Called Party Number and the two patterns that match are 555 and 5552,
the entry associated with 5552 is chosen as the best match. If the pattern is
not programmed, it is considered a match with the number of digits in the
pattern equal to 0.
is a sample Dial-Plan Routing Table. Note that in the sample table all
Sample PRI Dial-Plan Routing Table
0
SDN
555-1234
555
3
[none]
1 2
SDN MEG800
10 10
908-555-1234
[none] [none]
6 10
[none] 1234
June 1997
Page 462
3 ... 15
No Service
[not specified]
[none]
14
0
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