After a localized outage, executive teams want a single number: how many subscribers left. The more actionable question is how quickly usage returns to pre-event levels — and whether disconnect spikes lag the restoration by one or two billing cycles.
In event impact assessments we plot daily data volume and voice minutes for affected cells against a matched control region with similar plan mix. The gap closure rate — not just the trough depth — predicts whether goodwill credits will be sufficient.
Regulator-facing language
Korean telecommunications regulators expect event timelines tied to NOC incident IDs. We include synchronized timestamps and note any concurrent marketing campaigns that could confound usage interpretation.
Compensation calibration
When recovery curves flatten below ninety percent of baseline after 21 days, historical data from our prior engagements suggests higher downstream churn risk. We state that plainly in the findings memo so finance teams can size credit programs.