> ## Documentation Index > Fetch the complete documentation index at: https://doc.featherhq.com/llms.txt > Use this file to discover all available pages before exploring further. # Get a persona's voice call behavior settings > Return the persona's canonical ``VoiceCallSettings``. Persona reads never consult the legacy VPC scalar columns: a ``NULL``/ empty JSON column means schema defaults. These settings drive the persona (eval-user) side of voice simulations. ## OpenAPI ````yaml /api-reference/openapi.json get /v1/personas/{persona_id}/call-settings openapi: 3.1.0 info: title: Feather API description: >- Unified customer experience platform API. Manages identity, conversations, memory, agents, procedures, policies, model routing, knowledge bases, integrations, and runtime execution. version: 1.87.0 servers: - url: https://api-sandbox.featherhq.com description: Sandbox - url: http://localhost:8000 description: Local dev security: [] paths: /v1/personas/{persona_id}/call-settings: get: tags: - personas summary: Get a persona's voice call behavior settings description: >- Return the persona's canonical ``VoiceCallSettings``. Persona reads never consult the legacy VPC scalar columns: a ``NULL``/ empty JSON column means schema defaults. These settings drive the persona (eval-user) side of voice simulations. operationId: getPersonaCallSettings parameters: - name: persona_id in: path required: true schema: type: string format: uuid title: Persona Id responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/VoiceCallSettings' '400': description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Authentication required content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: Resource not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' security: - APIKeyHeader: [] components: schemas: VoiceCallSettings: properties: interruptions_enabled: type: boolean title: Interruptions Enabled default: true interruption_min_words: type: integer maximum: 20 minimum: 0 title: Interruption Min Words default: 2 interruption_min_duration_ms: type: integer maximum: 10000 minimum: 0 title: Interruption Min Duration Ms default: 0 interruption_backoff_ms: type: integer maximum: 10000 minimum: 0 title: Interruption Backoff Ms default: 1000 interruption_trigger_phrases: items: type: string type: array maxItems: 50 title: Interruption Trigger Phrases interruption_hard_phrases: items: type: string type: array maxItems: 20 title: Interruption Hard Phrases interruption_final_transcript_grace_ms: type: integer maximum: 2000 minimum: 0 title: Interruption Final Transcript Grace Ms default: 250 dtmf_enabled: type: boolean title: Dtmf Enabled default: false dtmf_termination_digit: type: string maxLength: 1 title: Dtmf Termination Digit default: '#' dtmf_inter_digit_timeout_ms: type: integer maximum: 60000 minimum: 250 title: Dtmf Inter Digit Timeout Ms default: 3000 dtmf_max_digits: type: integer maximum: 64 minimum: 1 title: Dtmf Max Digits default: 32 dtmf_prefix: type: string maxLength: 32 title: Dtmf Prefix default: 'DTMF: ' max_call_duration_ms: type: integer maximum: 1800000 minimum: 1000 title: Max Call Duration Ms default: 600000 silence_timeout_ms: type: integer maximum: 600000 minimum: 0 title: Silence Timeout Ms default: 30000 silence_reminder_count: type: integer maximum: 10 minimum: 0 title: Silence Reminder Count default: 0 silence_reminder_mode: type: string enum: - static - auto title: Silence Reminder Mode default: static silence_reminder_message: anyOf: - type: string maxLength: 500 - type: 'null' title: Silence Reminder Message silence_end_action: type: string enum: - hangup_immediate - speak_then_hangup title: Silence End Action default: hangup_immediate silence_end_message: anyOf: - type: string maxLength: 500 - type: 'null' title: Silence End Message voicemail_detection_mode: type: string enum: - 'off' - leave_message title: Voicemail Detection Mode default: 'off' voicemail_detection_timeout_ms: type: integer maximum: 60000 minimum: 0 title: Voicemail Detection Timeout Ms default: 2000 voicemail_detection_model: anyOf: - type: string maxLength: 64 - type: 'null' title: Voicemail Detection Model voicemail_message: anyOf: - type: string maxLength: 1000 - type: 'null' title: Voicemail Message background_audio_enabled: type: boolean title: Background Audio Enabled default: false background_audio_preset: anyOf: - type: string enum: - office - cafe - city - keyboard_typing - keyboard_typing2 - type: 'null' title: Background Audio Preset background_audio_volume: type: number maximum: 1 minimum: 0 title: Background Audio Volume default: 0.4 background_audio_loop: type: boolean title: Background Audio Loop default: true recording_enabled: type: boolean title: Recording Enabled default: true transcription_storage_enabled: type: boolean title: Transcription Storage Enabled default: true additionalProperties: false type: object title: VoiceCallSettings description: >- Complete voice call behavior settings with all defaults populated. Stored as a JSON column on ``AgentRevision``, ``Team``, and ``Persona``. Every field has a default so ``NULL``/``{}`` stored JSON resolves to the schema defaults — the legacy ``VoicePipelineConfig`` scalar columns these defaults once mirrored were dropped by migration 0219. ErrorResponse: properties: error: type: string title: Error message: type: string title: Message retryable: anyOf: - type: boolean - type: 'null' title: Retryable retry_after: anyOf: - type: integer - type: 'null' title: Retry After type: object required: - error - message title: ErrorResponse description: Standard error response returned by all API error handlers. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError securitySchemes: APIKeyHeader: type: apiKey in: header name: x-api-key ````