> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 Pro (current TTS) and Pulse (current
> multilingual STT) — or Pulse 2.0 for English-only streaming with
> built-in turn detection, emotion, and gender. Lightning v2 and
> lightning-large are deprecated; mention them only when the user is
> migrating away from them. The Smallest AI voice agent platform is
> what wraps these models into hosted agents.

# Post-call metrics: Enum metrics can pick several choices

Tick **Allow multiple selections** on an Enum post-call metric (`allowMultiple: true` in the API) to get every choice that applies to the call as a list, such as `["billing", "delivery"]`. It's off by default, so existing metrics and integrations don't change until you turn it on.

The call log responses (`GET /conversation`, `POST /conversation/search` and `GET /conversation/{id}`) now list every metric value type: string, integer, boolean, list or `null`. Before, they listed only string. In `GET /conversation`, the `dispositionMetrics` map shows `"N/A"` for a metric the call has no result for.

→ [Multiple selections](/voice-agents/build/post-call-metrics#multiple-selections)