> ## Documentation Index
> Fetch the complete documentation index at: https://developers.telnyx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Feature Coverage

> Feature coverage for Conversation History.

Conversation History coverage is organized by communication channel. Voice records are currently available from SIP connections.

## Voice

Voice coverage currently includes call history from SIP connections.

Enable `conversation_persistence` on a covered SIP connection resource to store and index voice conversation history.

### Supported Connection Types

* `ip_connections`
* `credential_connections`
* `fqdn_connections`

### Enable

```http theme={null}
PATCH /v2/credential_connections/{id}
```

```json theme={null}
{
  "conversation_persistence": true
}
```

### Disable

```http theme={null}
PATCH /v2/credential_connections/{id}
```

```json theme={null}
{
  "conversation_persistence": false
}
```

### Verify

```http theme={null}
GET /v2/credential_connections/{id}
```

The response includes `conversation_persistence` on the connection resource.

## Messaging

<Note>Coming soon.</Note>

## Email

<Note>Coming soon.</Note>