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Again, the diagram illustrates a scenario for a Wireless Long Distance Call.
Scenario 10
Local call outside ported area - LEC without LNP/LRN capability; Conforming IXC:
- Caller B makes a call within their Local Calling
Area (LCA), but from outside the MSA and ported area, to Caller C.
- LEC-4 is the N-1 carrier and, at some time, may
be required to perform the "database dip" to determine the
LRN to route the call to LEC-2. Until that time, LEC-4 may rely on
LEC-1 (or LEC-2) to terminate default routed calls.
- IXC-1 is the designated N-1 carrier, and has
the responsibility to determine the LRN by performing a "database
dip" and routing the call to LEC-2. If IXC-1 does not have a
direct connection to LEC-2, calls may be terminated through tandem
agreement with LEC-1
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