# call.transcript_segment

One final segment of a live call transcript.

### When it fires

Only for teams with zero content retention, on calls with transcription on: once per final segment, while the call is live. Zernio stores no transcript for these teams, so it cannot be fetched later. Store each segment when it arrives.

### Payload notes

`segment.text` is the final text, `segment.confidence` the recognition confidence and `segment.at` when it was transcribed.




**Payload for `call.transcript_segment`:**

- **test** `boolean`: Always true when present: only a sample sent by POST /v1/webhooks/test with an event carries it. Real deliveries never do.
- **id** (required) `string`: Stable webhook event ID: the dedupe key, also sent as the X-Zernio-Event-Id header and identical on every retry and redelivery. It identifies the event only, never an account or other resource.
- **profiles**: `WebhookProfiles` - See schema definition
- **event** (required) `string`: No description - one of: call.transcript_segment
- **call** (required) `object`: 
  - **id** `string`: Internal Zernio Call doc id
  - **metaCallId** `string,null`: Meta wacid.* call id when known
  - **accountId** `string`: No description
  - **phoneNumberId** `string`: Meta phone_number_id
  - **direction** `string`: No description - one of: inbound, outbound
  - **from** `string`: Consumer wa_id / E.164
  - **to** `string`: Business number (E.164)
  - **contactId** `string`: No description
  - **conversationId** `string`: No description
- **segment** (required) `object`: 
  - **text** (required) `string`: The final text of this segment.
  - **confidence** (required) `number,null`: Speech recognition confidence from 0 to 1, when the provider reports it.
  - **at** (required) `string` (date-time): When the segment was transcribed.
- **account** (required): `InboxWebhookAccount` - See schema definition
- **timestamp** (required) `string` (date-time): UTC time at which Zernio generated this event (set once when the event payload is built, before delivery is queued). Retries and redeliveries keep the original value, so it reflects the event, not the delivery attempt.