Audit support calls with tiered evidence

Audit support calls with tiered evidence, not one merged denominator

Separate call evidence into three tiers: provider attempt, provider-connected/answered state, and confirmed human interaction. Then separate exact episode linkage from heuristic phone-and-time matching, and publish each tier with its own coverage window. A short, high-quality projection should define scenario shares; a longer raw-event window may show workload volume but must not silently inherit exact attribution. Provider “answered” may include voicemail or carrier behavior, so avoid calling it a conversation without transcript or explicit response evidence.

Applies when: support analytics joins phone-provider events to product incidents. Keywords: support calls provider connected voicemail attribution coverage episode linkage