TIF Number Substitution Relationships
The TIF Number Substitution (TIF NS) feature enables subscriber DN records to associate with DNs
and DN Blocks for TIF Number Substitution. All DNs and DN Blocks used for TIF NS shall be
provisioned as public or private.
Two types of substitutions are supported:
1.
Public has Private Number: A DN or DN Block substitutes to (points to) a DN that is Private. The
originating DN or DN Block is Public.
2.
Private has Public Number: A DN or DN Block substitutes to (points to) a DN that is Public. The
originating DN or DN Block is Private.
Two types of cardinality are supported:
1.
1-way Substitution: A DN or DN Block points to a DN. An arbitrary number of DNs and DN Blocks
can point to the same DN. The pointed to DN points to nobody.
2.
Subscriber Pair: Two DNs may be linked in a pair. A DN in a TIF NS pair can only point to the DN
pointing to it (other DN in pair). No other DNs or DN Blocks may point to either DN in such a
pair.
This table shows the combination of associations that are supported and prohibited to subscriber
records. The left-most column lists the subscriber record type, and the right columns list its supported
and prohibited associations.
Table 43: Supported and Prohibited Subscriber Associations
AssociationsType
GRNVMSRNSPASDNSDN
Any OneNoneNone
DN,
DN Block
Any Two Unique NE Types (Except SP + RN)NoneNone
DN,
DN Block
Any OneNoneSupported
DN,
DN Block
Any OneSupportedNone
DN,
DN Block
Any Two Unique NE Types (Except SP + RN)SupportedProhibited
DN,
DN Block
Any OneSupportedSupported
DN,
167
910-6022-001 Revision A, March 2011
TIF Number Substitution RelationshipsProvisioning Database Interface Manual
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