# TranscriptionPayload ## Properties | Name | Type | Description | Notes | |------------ | ------------- | ------------- | -------------| |**callControlId** | **String** | Unique identifier and token for controlling the call. | [optional] | |**callLegId** | **String** | ID that is unique to the call and can be used to correlate webhook events. | [optional] | |**callSessionId** | **String** | ID that is unique to the call session and can be used to correlate webhook events. Call session is a group of related call legs that logically belong to the same phone call, e.g. an inbound and outbound leg of a transferred call. | [optional] | |**clientState** | **String** | Use this field to add state to every subsequent webhook. It must be a valid Base-64 encoded string. | [optional] | |**connectionId** | **String** | Call Control App ID (formerly Telnyx connection ID) used in the call. | [optional] | |**transcriptionData** | [**TranscriptionPayloadTranscriptionData**](TranscriptionPayloadTranscriptionData.md) | | [optional] |