DMS-100 Number Portability Digit Mapping Table (NPDIGMAP) |
Table Name
Number Portability Digit Mapping Table
Functional Description of Table NPDIGMAP
Table NPDIGMAP maps the NPANXX of the Generic Address Parameter (GAP) to a new area code and office code combination, when the original GAP is nonresident.
Local Number Portability (LNP) translations uses table NPDIGMAP when a call over an ISDN User Part (ISUP) trunk contains the following Initial Address Message (IAM) information:
If LNP uses table NPDIGMAP to translate the call, the NPANXX of the GAP indexes table NPDIGMAP.
If LNP translations finds a tuple, the AREACODE and OFCCODE fields replace the NPANXX of the GAP.
A DN residency check on the modified GAP determines if the call exists on the switch. If the call exists on the switch, LNP translations terminates the call. If the DN residency check fails, the call routes to LNP Misrouted Call (LNPM) treatment.
Datafill Sequence & Table Size
Datafill table TOFCNAME before table NPDIGMAP.
Any table indexed after table NPDIGMAP uses the mapped "CalledPartyID."
Table NPDIGMAP should only be datafilled during the permissive dialing period of a NPA split. Provisioning table NPDIGMAP outside the permissive dial period may result in incorrect call terminations and the corruption of data in tables LNPCODE, NPRESERV, and HOMELRN.
Table size is 0 to 32,000 tuples.
Datafill
The following table describes datafill for table NPDIGMAP:
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Table NPDIGMAP Field Descriptions
Field Subfield Entry Explanation and Action
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NPANXX Numeric Serving Numbering Plan Area
(6 digits) Enter a NPANXX.
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AREACODE Numeric Area Code
(3 digits) Enter an area code.
Note: Table TOFCNAME must index the same area
code.
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OFCCODE Numeric Office Code
(3 digits) Enter an office code.
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UPD4GAP Y or N Setting the field to "YES" triggers the automatic
update of table NPRESERV and LNPCODE to reflect
the digits in the AREACODE and OFCCODE fields.
Note: Field can only be set to "YES" if the
NPE00005 SOC is active.
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UPD4LRN Y or N Setting the field to "YES" triggers the automatic
update of table HOMELRN to reflect the digits in
the AREACODE and OFCCODE fields. This tuple can
be used to map LRN digits during the permissive
dialing period of a NPA split.
Note: Field can only be set to "YES" if the
NPE00005 SOC is active.
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-End-
Datafill Example
The following example MAP display shows sample datafill for table NPDIGMAP:
NPANXX AREACODE OFCCODE UPD4GAP UPD4LRN _______________________________________________________ 519313 613 663 Y N |
Supplementary Information
The following table explains error messages that can occur when you try to datafill table TOFCNAME.
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Error Messages
Message Explanation User Action
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"NXX must be 6 digits." The number of digits Enter the tuple again.
entered for the NPANXX Use a six-digit NPANXX.
does not equal six.
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"OFCCODE must be 3 digits." The number of digits entered Enter the tuple again.
for the office code does not Use a three-digit office code.
equal three.
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"AREACODE-OFCCODE not found The digits entered for the Enter an NPANXX that maps to
in table TOFCNAME" area code-office code do not table TOFCNAME.
map to table TOFCNAME.
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"Key error tuple already Another tuple uses that NPANXX. Enter an NPANXX not used by
exists." another tuple.
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"ERROR: Failed to read the The LIST or POS position on a Enter the tuple again.
tuple." tuple failed.
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