Cherry-picking
One aim of LCR teams is to cherry-pick. This happens when Carrier A's team finds that Carrier B defines a code range as being fixed-line and so cheap, while Carrier A defines it as mobile and so more expensive. Carrier A will send that range to Carrier B, pay a low fixed-line rate and charge at a high mobile rate - making much more profit. Carrier B will sustain losses if it does not notice that its supplier, C, also defines that range as belonging to a mobile operator and charges a higher rate. Caught in the middle, B can sustain five- or even six- figure losses in a very short time.
Read more about this topic: Least-cost Routing