Reading interconnect settlement codes without guessing
Settlement files often rename traffic that rating still calls by another code. Mapping those labels early saves argument later.
Wholesale desks inherit settlement code lists written by different eras of the network. A weekend peak code in the commercial schedule may appear as three separate rated event types after a mediation redesign. Without a mapping table, volume disputes become opinions.
A mapping table worth keeping
For each settlement code, record the rated event types, time-of-day rules, and whether rejects are excluded before or after aggregation. Update the table when mediation filters change — not only when the commercial schedule is renegotiated.
During a review
Our Interconnect Settlement Review starts with that mapping. Only then do we reconstruct expected settlement amounts from rated events. Arguments about “missing minutes” often turn out to be rejects applied at different stages.