Another Wireline Long Distance call scenario.
Long Distance - IXC without LNP/LRN capability:
- Caller A calls long distance to Caller C from outside the ported area.
- LEC-3 routes the call to the caller's pre-subscribed carrier without any requirement to determine the LRN.
- The pre-subscribed IXC (IXC-2) is the N-1 carrier. Because IXC-2 does not have LNP/LRN capability, IXC-2 will default route traffic to LEC-1 (or LEC-2), who then becomes the carrier actually performing the LNP/LRN function to determine proper routing.