Some will simply use call center agent questions ("Have I successfully addressed all your needs?"... "Is there anything else I can help you with?") or use agent perception to capture the outcome. Others will use contact records – either through phone call automatic number identification (ANI) matching, the contact tracking, or other means – to see if customers called back in a given time period, or to assess if the record was noted as closed (resolved) or escalated or noted for call back. Others use surveys or quality monitoring as a representative sample to assess overall FCR.
As far as the frequency for measuring FCR, that is something that should be defined as part of a metrics strategy. Generally you don't want to be too granular, as an off day with a problem (e.g., system availability) could result in poor performance. However, too broad a timeframe can disguise problems. Some will use a balance that looks at more granular timeframes but allows for a certain number of missed intervals.
This was first published in January 2007