API Reference

Campaigns

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Get campaign rows

GET/campaigns/{id}/rows

Retrieve all contact rows for a campaign. Useful for loading draft campaign data for editing.

Path ParametersExpand Collapse

id: string

ReturnsExpand Collapse

rows: array of object { id, input_data, phone_number, 2 more }

id: string

input_data: map[string]

phone_number: string

row_index: number

call: optional object { id, assistant, call_attempts, 20 more }

This represent a call "order" that was requested by the user. A call order can be resolved over multiple call attempts spanning up to a few days.

id: string

The ID of the call.

assistant: object { id, after_call_sms_prompt, background_sound, 36 more }

id: string

after_call_sms_prompt: string

Prompt / instructions for the after-call SMS. Supports {{variable}} placeholders. When null, no after-call SMS is sent.

background_sound: "audio/office.ogg"

Ambient background sound to play during the call. null disables it.

background_sound_volume: number

Volume of the ambient background sound (0 = silent, 1 = max).

minimum0

maximum1

calendly: object { connection_id, event_type_id }

connection_id: string

The connection ID representing the link between your Calendly account and Revox.

event_type_id: string

The event type ID representing the event type to schedule. (eg: https://api.calendly.com/event_types/b2330295-2a91-4a1d-bb73-99e7707663d5)

call_retry_config: object { allowed_days, call_twice_in_a_row, calling_windows, 2 more }

Configuration for call retry behavior including time windows, delays, and max iterations. If not provided, defaults will be used.

allowed_days: array of "monday" or "tuesday" or "wednesday" or 4 more

Days of the week when calls are allowed, in the recipient's timezone. Default: Monday through Friday.

One of the following:

"monday"

"tuesday"

"wednesday"

"thursday"

"friday"

"saturday"

"sunday"

call_twice_in_a_row: boolean

If true and max_retry_attempts >= 2, attempt #2 fires immediately (skipping retry_delay_seconds) when attempt #1 didn't reach a human. Calling-window/allowed-days checks still apply. Only affects the 1→2 transition. Default: false.

calling_windows: array of object { calling_window_end_time, calling_window_start_time, retry_delay_seconds }

calling_window_end_time: string

End time for the calling window in the recipient's timezone (or timezone_override if provided). Format: 'HH:mm' (24-hour) or 'H:mma' (12-hour). Examples: '17:00', '6pm'. Default: '18:00'.

calling_window_start_time: string

Start time for the calling window in the recipient's timezone (or timezone_override if provided). Format: 'HH:mm' (24-hour) or 'H:mma' (12-hour). Examples: '09:00', '10am'. Default: '10:00'.

retry_delay_seconds: number

Delay between retry attempts in seconds. Default: 7200 (2 hours).

exclusiveMinimum0

maximum9007199254740991

max_retry_attempts: number

Maximum number of call retry attempts. Default: 3.

exclusiveMinimum0

maximum9007199254740991

timezone: optional string

Optional IANA timezone identifier to override the automatic timezone detection from phone number. If not provided, timezone is determined from the recipient's phone number country code. Examples: 'America/New_York', 'Europe/Paris'.

created_at: unknown

custom_tools: array of object { body_template, description, headers, 5 more }

body_template: string

JSON body template for the request. Use quoted {{variable}} placeholders (e.g. "{{name}}") for dynamic values

description: string

Human-readable description of what the tool does, used by the LLM to decide when to call it

minLength1

headers: array of object { key, value }

HTTP headers to include in the request. Values support {{variable}} placeholders

key: string

minLength1

value: string

input_schema: array of object { name, required, type, 2 more }

Schema defining the parameters the LLM should extract from the conversation to pass to this tool

name: string

minLength1

required: boolean

type: "string" or "number" or "boolean" or 3 more

One of the following:

"string"

"number"

"boolean"

"enum"

"date"

"datetime"

description: optional string

enum_options: optional array of string

method: "GET" or "POST" or "PUT" or 2 more

HTTP method to use when calling the API endpoint

One of the following:

"GET"

"POST"

"PUT"

"PATCH"

"DELETE"

name: string

Unique tool name in lowercase_snake_case (e.g. check_inventory)

minLength1

query_params: array of object { key, value }

Query string parameters appended to the URL. Values support {{variable}} placeholders

key: string

minLength1

value: string

url: string

Full URL of the API endpoint. Supports {{variable}} placeholders for dynamic values

minLength1

email_notification_address: string

Email address to receive notifications when a call ends with a matching outcome.

formatemail

email_notification_outcomes: array of "not_interested" or "interested" or "completed" or 3 more

Which call outcomes trigger an email notification. E.g. ["interested", "completed"].

One of the following:

"not_interested"

"interested"

"completed"

"requested_callback_later"

"requested_callback_new_number"

"do_not_contact"

end_of_call_sentence: string

first_sentence: string

first_sentence_delay_ms: number

Delay in milliseconds before speaking the first sentence. Default: 400.

minimum-9007199254740991

maximum9007199254740991

first_sentence_mode: "generated" or "static" or "none"

One of the following:

"generated"

"static"

"none"

from_phone_number: string

Override the default outbound phone number for calls placed with this assistant. When null, the organization's default phone number is used.

human_transfer_mode: "warm" or "cold"

Warm or cold transfer when transfer_phone_number is set; null when transfer is not configured.

One of the following:

"warm"

"cold"

ivr_navigation_enabled: boolean

Enable IVR navigation tools. When enabled, the assistant can send DTMF tones and skip turns to navigate phone menus.

llm_model: object { name, type } or object { openrouter_model_id, openrouter_provider, type } or object { api_key, api_url, model_name, type } or object { provider, realtime_model_id, type, realtime_voice_id }

One of the following:

UnionMember0 = object { name, type }

name: "gpt-4.1" or "ministral-3-8b-instruct"

One of the following:

"gpt-4.1"

"ministral-3-8b-instruct"

type: "dedicated-instance"

UnionMember1 = object { openrouter_model_id, openrouter_provider, type }

openrouter_model_id: string

The model ID to use from OpenRouter. eg: openai/gpt-4.1

openrouter_provider: string

The provider to use from OpenRouter. eg: nebius, openai, azure, etc.

type: "openrouter"

Use a model from OpenRouter.

UnionMember2 = object { api_key, api_url, model_name, type }

api_key: string

API key sent as Bearer token to the custom endpoint.

minLength1

api_url: string

Base URL for the OpenAI-compatible API, e.g. https://api.together.xyz/v1

formaturi

model_name: string

Model name as expected by the provider, e.g. meta-llama/llama-3-70b

minLength1

type: "custom"

OpenAI-compatible chat completions API (bring your own endpoint and key).

UnionMember3 = object { provider, realtime_model_id, type, realtime_voice_id }

provider: "openai" or "google"

The provider to use from Realtime. eg: openai, google.

One of the following:

"openai"

"google"

realtime_model_id: string

The model ID to use from Realtime. eg: gpt-4.1

type: "realtime"

Use a model from Realtime.

realtime_voice_id: optional string

Output voice for the realtime provider (e.g. OpenAI: marin; Gemini: Puck).

minLength1

max_call_duration_secs: number

The maximum duration of the call in seconds. This is the maximum time the call will be allowed to run.

max_duration_end_message: string

Optional message the agent will say, without being interruptible, when the call reaches its max duration. Kept short so it fits inside the farewell buffer. If null, the call ends silently.

maxLength150

name: string

organization_id: string

prompt: string

sms_enabled: boolean

Enable SMS tool during calls. When enabled, the agent can send SMS messages to the user on the call.

sms_template: string

Hardcoded SMS template to send during calls. When set, this exact text is sent instead of letting the agent generate the message. Supports {{variable}} placeholders.

structured_output_config: array of object { name, required, type, 2 more }

The structured output config to use for the call. This is used to extract the data from the call (like email, name, company name, etc.).

name: string

minLength1

required: boolean

type: "string" or "number" or "boolean" or 3 more

One of the following:

"string"

"number"

"boolean"

"enum"

"date"

"datetime"

description: optional string

enum_options: optional array of string

structured_output_prompt: string

Custom prompt for structured data extraction. If not provided, a default prompt is used. Available variables: {{transcript}}, {{call_direction}}, {{user_phone_number}}, {{agent_phone_number}}.

thinking_sound: "city-ambience.ogg" or "forest-ambience.ogg" or "office-ambience.ogg" or 4 more

Audio clip to play while the agent is processing a response. One of the built-in LiveKit audio clips; null disables it.

One of the following:

"city-ambience.ogg"

"forest-ambience.ogg"

"office-ambience.ogg"

"crowded-room.ogg"

"keyboard-typing.ogg"

"keyboard-typing2.ogg"

"hold_music.ogg"

thinking_sound_probability: number

Probability [0..1] that the thinking sound plays on any given turn; otherwise the agent is silent while thinking.

minimum0

maximum1

thinking_sound_volume: number

Volume of the thinking sound (0 = silent, 1 = max).

minimum0

maximum1

transfer_phone_number: string

Phone number to transfer calls to when users request to speak to a human agent.

updated_at: unknown

voice: object { id, provider, speed, volume }

id: string

The ID of the voice.

minLength1

provider: "cartesia" or "elevenlabs"

The provider of the voice.

One of the following:

"cartesia"

"elevenlabs"

speed: optional number

The speed of the voice. Range depends on provider: Cartesia 0.6–1.5, ElevenLabs 0.7–1.2. Default is 1.0.

minimum0.6

maximum1.5

volume: optional number

Volume of the voice (Cartesia only). 0.5–2.0, default 1.0. Ignored for other providers.

minimum0.5

maximum2

voicemail_message: string

If set, when voicemail is detected the agent will speak this message then hang up; if null, hang up immediately.

voicemail_sms_prompt: string

Prompt / instructions for the voicemail SMS. Supports {{variable}} placeholders. When null, no SMS is sent on voicemail.

warm_transfer_summary_instructions: string

Warm transfer only: instructions for the supervisor handoff summary; null when not configured or cold transfer.

webhook_url: string

The webhook URL to call when the call is completed.

faq_items: optional array of object { answer, question, id, 2 more }

answer: string

question: string

id: optional string

needs_human_answer: optional boolean

source: optional "human" or "ai"

One of the following:

"human"

"ai"

pending_faq_count: optional number

call_attempts: array of object { id, answered_at, dial_error, 10 more }

All call attempts for this call order, ordered by most recent first.

id: string

The ID of the call attempt.

answered_at: unknown

The time the call was answered.

dial_error: "number_non_attributed" or "too_many_calls" or "busy" or 5 more

The SIP error that occurred.

One of the following:

"number_non_attributed"

"too_many_calls"

"busy"

"temporarily_unavailable"

"no_answer"

"no_international_permission"

"precondition_failed"

"non_classified_error"

ended_at: unknown

The time the call ended.

phone_number: string

The phone number that was called. Formatted in E.164 format. Example: +1234567890

recording_url: string

The URL of the audio recording of the call.

result: "IVR" or "voicemail" or "human" or 2 more

One of the following:

"IVR"

"voicemail"

"human"

"unknown"

"ios-screening-filter"

started_at: unknown

The time the call started.

status: "queued" or "ringing" or "ongoing" or 2 more

The status of the call attempt.

One of the following:

"queued"

"ringing"

"ongoing"

"completed"

"error"

end_reason: optional string

Reason for ending the call when ended_by is 'agent'. E.g. 'tool_end_call', 'voicemail', 'transfer', 'ivr_no_navigate'.

ended_by: optional "agent" or "user" or "system"

Who ended the call: 'agent' (AI agent), 'user' (caller/callee hung up), or 'system' (e.g. max duration limit).

One of the following:

"agent"

"user"

"system"

structured_output: optional map[unknown]

The data extracted from the call, using the structured output config from the parent call object.

transcript: optional array of object { content, role, tool_arguments, 3 more }

The transcript of the call.

content: string

role: "user" or "assistant" or "tool"

One of the following:

"user"

"assistant"

"tool"

tool_arguments: optional map[unknown] or string

One of the following:

UnionMember0 = map[unknown]

UnionMember1 = string

tool_is_error: optional boolean

tool_name: optional string

tool_output: optional string

call_retry_config: object { allowed_days, call_twice_in_a_row, calling_windows, 2 more }

Configuration for call retry behavior including time windows, delays, and max iterations. If not provided, defaults will be used.

allowed_days: array of "monday" or "tuesday" or "wednesday" or 4 more

Days of the week when calls are allowed, in the recipient's timezone. Default: Monday through Friday.

One of the following:

"monday"

"tuesday"

"wednesday"

"thursday"

"friday"

"saturday"

"sunday"

call_twice_in_a_row: boolean

If true and max_retry_attempts >= 2, attempt #2 fires immediately (skipping retry_delay_seconds) when attempt #1 didn't reach a human. Calling-window/allowed-days checks still apply. Only affects the 1→2 transition. Default: false.

calling_windows: array of object { calling_window_end_time, calling_window_start_time, retry_delay_seconds }

calling_window_end_time: string

End time for the calling window in the recipient's timezone (or timezone_override if provided). Format: 'HH:mm' (24-hour) or 'H:mma' (12-hour). Examples: '17:00', '6pm'. Default: '18:00'.

calling_window_start_time: string

Start time for the calling window in the recipient's timezone (or timezone_override if provided). Format: 'HH:mm' (24-hour) or 'H:mma' (12-hour). Examples: '09:00', '10am'. Default: '10:00'.

retry_delay_seconds: number

Delay between retry attempts in seconds. Default: 7200 (2 hours).

exclusiveMinimum0

maximum9007199254740991

max_retry_attempts: number

Maximum number of call retry attempts. Default: 3.

exclusiveMinimum0

maximum9007199254740991

timezone: optional string

Optional IANA timezone identifier to override the automatic timezone detection from phone number. If not provided, timezone is determined from the recipient's phone number country code. Examples: 'America/New_York', 'Europe/Paris'.

calls_count: number

The number of call attempts made.

campaign: object { id, name }

id: string

name: string

created_at: unknown

The time the call order was created.

direction: "inbound" or "outbound"

Whether the call is inbound or outbound.

One of the following:

"inbound"

"outbound"

first_sentence_delay_ms: number

Delay in milliseconds before speaking the first sentence. Default: 400.

minimum-9007199254740991

maximum9007199254740991

from_phone_number: string

The phone number that made the call. Formatted in E.164 format. Example: +1234567890

is_cancelled: boolean

DEPRECATED: Whether the call has been cancelled. This is derived from status. Use status instead.

is_completed: boolean

DEPRECATED: Whether the call has completed. This is derived from status. Use status instead.

last_call_attempt: object { id, answered_at, dial_error, 10 more }

This represent a single call attempt. A call attempt is a single call made to the phone number.

id: string

The ID of the call attempt.

answered_at: unknown

The time the call was answered.

dial_error: "number_non_attributed" or "too_many_calls" or "busy" or 5 more

The SIP error that occurred.

One of the following:

"number_non_attributed"

"too_many_calls"

"busy"

"temporarily_unavailable"

"no_answer"

"no_international_permission"

"precondition_failed"

"non_classified_error"

ended_at: unknown

The time the call ended.

phone_number: string

The phone number that was called. Formatted in E.164 format. Example: +1234567890

recording_url: string

The URL of the audio recording of the call.

result: "IVR" or "voicemail" or "human" or 2 more

One of the following:

"IVR"

"voicemail"

"human"

"unknown"

"ios-screening-filter"

started_at: unknown

The time the call started.

status: "queued" or "ringing" or "ongoing" or 2 more

The status of the call attempt.

One of the following:

"queued"

"ringing"

"ongoing"

"completed"

"error"

end_reason: optional string

Reason for ending the call when ended_by is 'agent'. E.g. 'tool_end_call', 'voicemail', 'transfer', 'ivr_no_navigate'.

ended_by: optional "agent" or "user" or "system"

Who ended the call: 'agent' (AI agent), 'user' (caller/callee hung up), or 'system' (e.g. max duration limit).

One of the following:

"agent"

"user"

"system"

structured_output: optional map[unknown]

The data extracted from the call, using the structured output config from the parent call object.

transcript: optional array of object { content, role, tool_arguments, 3 more }

The transcript of the call.

content: string

role: "user" or "assistant" or "tool"

One of the following:

"user"

"assistant"

"tool"

tool_arguments: optional map[unknown] or string

One of the following:

UnionMember0 = map[unknown]

UnionMember1 = string

tool_is_error: optional boolean

tool_name: optional string

tool_output: optional string

llm_model: object { name, type } or object { openrouter_model_id, openrouter_provider, type } or object { api_key, api_url, model_name, type } or object { provider, realtime_model_id, type, realtime_voice_id }

One of the following:

UnionMember0 = object { name, type }

name: "gpt-4.1" or "ministral-3-8b-instruct"

One of the following:

"gpt-4.1"

"ministral-3-8b-instruct"

type: "dedicated-instance"

UnionMember1 = object { openrouter_model_id, openrouter_provider, type }

openrouter_model_id: string

The model ID to use from OpenRouter. eg: openai/gpt-4.1

openrouter_provider: string

The provider to use from OpenRouter. eg: nebius, openai, azure, etc.

type: "openrouter"

Use a model from OpenRouter.

UnionMember2 = object { api_key, api_url, model_name, type }

api_key: string

API key sent as Bearer token to the custom endpoint.

minLength1

api_url: string

Base URL for the OpenAI-compatible API, e.g. https://api.together.xyz/v1

formaturi

model_name: string

Model name as expected by the provider, e.g. meta-llama/llama-3-70b

minLength1

type: "custom"

OpenAI-compatible chat completions API (bring your own endpoint and key).

UnionMember3 = object { provider, realtime_model_id, type, realtime_voice_id }

provider: "openai" or "google"

The provider to use from Realtime. eg: openai, google.

One of the following:

"openai"

"google"

realtime_model_id: string

The model ID to use from Realtime. eg: gpt-4.1

type: "realtime"

Use a model from Realtime.

realtime_voice_id: optional string

Output voice for the realtime provider (e.g. OpenAI: marin; Gemini: Puck).

minLength1

metadata: map[string]

Metadata stored with the call.

organization_id: string

The ID of the organization that owns the call.

prompt_variables: map[string]

Variables used to interpolate the prompt.

scheduled_at: unknown

The time the call order is scheduled to start.

status: "initializing" or "queued_for_calling" or "calling" or 4 more

The status of the call.

One of the following:

"initializing"

"queued_for_calling"

"calling"

"scheduled"

"completed"

"cancelled"

"errored"

to_phone_number: string

The phone number that received the call. Formatted in E.164 format. Example: +1234567890

updated_at: unknown

The time the call order was last updated (any state change, retry, or analysis result).

outcome: optional "not_interested" or "interested" or "completed" or 3 more

Business outcome of the call. Null if not computed or no transcript.

One of the following:

"not_interested"

"interested"

"completed"

"requested_callback_later"

"requested_callback_new_number"

"do_not_contact"

outcome_summary: optional string

LLM explanation for the outcome, when outcome was computed from the transcript.

Get campaign rows

HTTP

HTTP

TypeScript

Python

Ruby

curl https://www.getrevox.com/api/campaigns/$ID/rows \
    -H "Authorization: Bearer $REVOX_API_KEY"

200 example

{
  "rows": [
    {
      "id": "id",
      "input_data": {
        "foo": "string"
      },
      "phone_number": "phone_number",
      "row_index": 0,
      "call": {
        "id": "id",
        "assistant": {
          "id": "id",
          "after_call_sms_prompt": "after_call_sms_prompt",
          "background_sound": "audio/office.ogg",
          "background_sound_volume": 0,
          "calendly": {
            "connection_id": "connection_id",
            "event_type_id": "event_type_id"
          },
          "call_retry_config": {
            "allowed_days": [
              "monday"
            ],
            "call_twice_in_a_row": true,
            "calling_windows": [
              {
                "calling_window_end_time": "calling_window_end_time",
                "calling_window_start_time": "calling_window_start_time",
                "retry_delay_seconds": 1
              }
            ],
            "max_retry_attempts": 1,
            "timezone": "timezone"
          },
          "created_at": {},
          "custom_tools": [
            {
              "body_template": "body_template",
              "description": "x",
              "headers": [
                {
                  "key": "x",
                  "value": "value"
                }
              ],
              "input_schema": [
                {
                  "name": "x",
                  "required": true,
                  "type": "string",
                  "description": "description",
                  "enum_options": [
                    "string"
                  ]
                }
              ],
              "method": "GET",
              "name": "name",
              "query_params": [
                {
                  "key": "x",
                  "value": "value"
                }
              ],
              "url": "x"
            }
          ],
          "email_notification_address": "dev@stainless.com",
          "email_notification_outcomes": [
            "not_interested"
          ],
          "end_of_call_sentence": "end_of_call_sentence",
          "first_sentence": "first_sentence",
          "first_sentence_delay_ms": -9007199254740991,
          "first_sentence_mode": "generated",
          "from_phone_number": "from_phone_number",
          "human_transfer_mode": "warm",
          "ivr_navigation_enabled": true,
          "llm_model": {
            "name": "gpt-4.1",
            "type": "dedicated-instance"
          },
          "max_call_duration_secs": 0,
          "max_duration_end_message": "max_duration_end_message",
          "name": "name",
          "organization_id": "organization_id",
          "prompt": "prompt",
          "sms_enabled": true,
          "sms_template": "sms_template",
          "structured_output_config": [
            {
              "name": "x",
              "required": true,
              "type": "string",
              "description": "description",
              "enum_options": [
                "string"
              ]
            }
          ],
          "structured_output_prompt": "structured_output_prompt",
          "thinking_sound": "city-ambience.ogg",
          "thinking_sound_probability": 0,
          "thinking_sound_volume": 0,
          "transfer_phone_number": "transfer_phone_number",
          "updated_at": {},
          "voice": {
            "id": "x",
            "provider": "cartesia",
            "speed": 0.6,
            "volume": 0.5
          },
          "voicemail_message": "voicemail_message",
          "voicemail_sms_prompt": "voicemail_sms_prompt",
          "warm_transfer_summary_instructions": "warm_transfer_summary_instructions",
          "webhook_url": "webhook_url",
          "faq_items": [
            {
              "answer": "answer",
              "question": "question",
              "id": "id",
              "needs_human_answer": true,
              "source": "human"
            }
          ],
          "pending_faq_count": 0
        },
        "call_attempts": [
          {
            "id": "id",
            "answered_at": {},
            "dial_error": "number_non_attributed",
            "ended_at": {},
            "phone_number": "phone_number",
            "recording_url": "recording_url",
            "result": "IVR",
            "started_at": {},
            "status": "queued",
            "end_reason": "end_reason",
            "ended_by": "agent",
            "structured_output": {
              "foo": "bar"
            },
            "transcript": [
              {
                "content": "content",
                "role": "user",
                "tool_arguments": {
                  "foo": "bar"
                },
                "tool_is_error": true,
                "tool_name": "tool_name",
                "tool_output": "tool_output"
              }
            ]
          }
        ],
        "call_retry_config": {
          "allowed_days": [
            "monday"
          ],
          "call_twice_in_a_row": true,
          "calling_windows": [
            {
              "calling_window_end_time": "calling_window_end_time",
              "calling_window_start_time": "calling_window_start_time",
              "retry_delay_seconds": 1
            }
          ],
          "max_retry_attempts": 1,
          "timezone": "timezone"
        },
        "calls_count": 0,
        "campaign": {
          "id": "id",
          "name": "name"
        },
        "created_at": {},
        "direction": "inbound",
        "first_sentence_delay_ms": -9007199254740991,
        "from_phone_number": "from_phone_number",
        "is_cancelled": true,
        "is_completed": true,
        "last_call_attempt": {
          "id": "id",
          "answered_at": {},
          "dial_error": "number_non_attributed",
          "ended_at": {},
          "phone_number": "phone_number",
          "recording_url": "recording_url",
          "result": "IVR",
          "started_at": {},
          "status": "queued",
          "end_reason": "end_reason",
          "ended_by": "agent",
          "structured_output": {
            "foo": "bar"
          },
          "transcript": [
            {
              "content": "content",
              "role": "user",
              "tool_arguments": {
                "foo": "bar"
              },
              "tool_is_error": true,
              "tool_name": "tool_name",
              "tool_output": "tool_output"
            }
          ]
        },
        "llm_model": {
          "name": "gpt-4.1",
          "type": "dedicated-instance"
        },
        "metadata": {
          "foo": "string"
        },
        "organization_id": "organization_id",
        "prompt_variables": {
          "foo": "string"
        },
        "scheduled_at": {},
        "status": "initializing",
        "to_phone_number": "to_phone_number",
        "updated_at": {},
        "outcome": "not_interested",
        "outcome_summary": "outcome_summary"
      }
    }
  ]
}

Returns Examples

200 example

{
  "rows": [
    {
      "id": "id",
      "input_data": {
        "foo": "string"
      },
      "phone_number": "phone_number",
      "row_index": 0,
      "call": {
        "id": "id",
        "assistant": {
          "id": "id",
          "after_call_sms_prompt": "after_call_sms_prompt",
          "background_sound": "audio/office.ogg",
          "background_sound_volume": 0,
          "calendly": {
            "connection_id": "connection_id",
            "event_type_id": "event_type_id"
          },
          "call_retry_config": {
            "allowed_days": [
              "monday"
            ],
            "call_twice_in_a_row": true,
            "calling_windows": [
              {
                "calling_window_end_time": "calling_window_end_time",
                "calling_window_start_time": "calling_window_start_time",
                "retry_delay_seconds": 1
              }
            ],
            "max_retry_attempts": 1,
            "timezone": "timezone"
          },
          "created_at": {},
          "custom_tools": [
            {
              "body_template": "body_template",
              "description": "x",
              "headers": [
                {
                  "key": "x",
                  "value": "value"
                }
              ],
              "input_schema": [
                {
                  "name": "x",
                  "required": true,
                  "type": "string",
                  "description": "description",
                  "enum_options": [
                    "string"
                  ]
                }
              ],
              "method": "GET",
              "name": "name",
              "query_params": [
                {
                  "key": "x",
                  "value": "value"
                }
              ],
              "url": "x"
            }
          ],
          "email_notification_address": "dev@stainless.com",
          "email_notification_outcomes": [
            "not_interested"
          ],
          "end_of_call_sentence": "end_of_call_sentence",
          "first_sentence": "first_sentence",
          "first_sentence_delay_ms": -9007199254740991,
          "first_sentence_mode": "generated",
          "from_phone_number": "from_phone_number",
          "human_transfer_mode": "warm",
          "ivr_navigation_enabled": true,
          "llm_model": {
            "name": "gpt-4.1",
            "type": "dedicated-instance"
          },
          "max_call_duration_secs": 0,
          "max_duration_end_message": "max_duration_end_message",
          "name": "name",
          "organization_id": "organization_id",
          "prompt": "prompt",
          "sms_enabled": true,
          "sms_template": "sms_template",
          "structured_output_config": [
            {
              "name": "x",
              "required": true,
              "type": "string",
              "description": "description",
              "enum_options": [
                "string"
              ]
            }
          ],
          "structured_output_prompt": "structured_output_prompt",
          "thinking_sound": "city-ambience.ogg",
          "thinking_sound_probability": 0,
          "thinking_sound_volume": 0,
          "transfer_phone_number": "transfer_phone_number",
          "updated_at": {},
          "voice": {
            "id": "x",
            "provider": "cartesia",
            "speed": 0.6,
            "volume": 0.5
          },
          "voicemail_message": "voicemail_message",
          "voicemail_sms_prompt": "voicemail_sms_prompt",
          "warm_transfer_summary_instructions": "warm_transfer_summary_instructions",
          "webhook_url": "webhook_url",
          "faq_items": [
            {
              "answer": "answer",
              "question": "question",
              "id": "id",
              "needs_human_answer": true,
              "source": "human"
            }
          ],
          "pending_faq_count": 0
        },
        "call_attempts": [
          {
            "id": "id",
            "answered_at": {},
            "dial_error": "number_non_attributed",
            "ended_at": {},
            "phone_number": "phone_number",
            "recording_url": "recording_url",
            "result": "IVR",
            "started_at": {},
            "status": "queued",
            "end_reason": "end_reason",
            "ended_by": "agent",
            "structured_output": {
              "foo": "bar"
            },
            "transcript": [
              {
                "content": "content",
                "role": "user",
                "tool_arguments": {
                  "foo": "bar"
                },
                "tool_is_error": true,
                "tool_name": "tool_name",
                "tool_output": "tool_output"
              }
            ]
          }
        ],
        "call_retry_config": {
          "allowed_days": [
            "monday"
          ],
          "call_twice_in_a_row": true,
          "calling_windows": [
            {
              "calling_window_end_time": "calling_window_end_time",
              "calling_window_start_time": "calling_window_start_time",
              "retry_delay_seconds": 1
            }
          ],
          "max_retry_attempts": 1,
          "timezone": "timezone"
        },
        "calls_count": 0,
        "campaign": {
          "id": "id",
          "name": "name"
        },
        "created_at": {},
        "direction": "inbound",
        "first_sentence_delay_ms": -9007199254740991,
        "from_phone_number": "from_phone_number",
        "is_cancelled": true,
        "is_completed": true,
        "last_call_attempt": {
          "id": "id",
          "answered_at": {},
          "dial_error": "number_non_attributed",
          "ended_at": {},
          "phone_number": "phone_number",
          "recording_url": "recording_url",
          "result": "IVR",
          "started_at": {},
          "status": "queued",
          "end_reason": "end_reason",
          "ended_by": "agent",
          "structured_output": {
            "foo": "bar"
          },
          "transcript": [
            {
              "content": "content",
              "role": "user",
              "tool_arguments": {
                "foo": "bar"
              },
              "tool_is_error": true,
              "tool_name": "tool_name",
              "tool_output": "tool_output"
            }
          ]
        },
        "llm_model": {
          "name": "gpt-4.1",
          "type": "dedicated-instance"
        },
        "metadata": {
          "foo": "string"
        },
        "organization_id": "organization_id",
        "prompt_variables": {
          "foo": "string"
        },
        "scheduled_at": {},
        "status": "initializing",
        "to_phone_number": "to_phone_number",
        "updated_at": {},
        "outcome": "not_interested",
        "outcome_summary": "outcome_summary"
      }
    }
  ]
}