Cancelling Calls

HuskyVoice AI allows you to stop pending or scheduled calls before they are answered. This is essential for preventing redundant reach-outs if a customer has already completed an action elsewhere.

---

REST API

1. Using the REST API

Best for programmatic control within your backend.

• Endpoint: POST https://api.huskyvoice.ai/v1/calls/{call_id}/cancel
• Method: POST

cURL

curl -s -X POST https://api.huskyvoice.ai/v1/calls/call_abc_123/cancel \
  -H "x-api-key: YOUR_API_KEY"

Python

import requests

call_id = "call_abc_123"
url = f"https://api.huskyvoice.ai/v1/calls/{call_id}/cancel"
headers = {"x-api-key": "YOUR_API_KEY"}

response = requests.post(url, headers=headers)
if response.status_code == 200:
    print("Call successfully cancelled")

JavaScript

const callId = "call_abc_123";
const response = await fetch(
  `https://api.huskyvoice.ai/v1/calls/${callId}/cancel`,
  {
    method: "POST",
    headers: { "x-api-key": "YOUR_API_KEY" }
  }
);
if (response.ok) {
  console.log("Call successfully cancelled");
}

n8n

Credential setup

Create an HTTP Header Auth credential in n8n: set Name to x-api-key and Value to YOUR_API_KEY. Select it in the HTTP Request node's Authentication field.

{
  "name": "HuskyVoice – Cancel Call",
  "nodes": [
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.huskyvoice.ai/v1/calls/call_abc_123/cancel",
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth"
      },
      "id": "1",
      "name": "Cancel Call",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [250, 300]
    }
  ],
  "connections": {},
  "settings": {},
  "meta": { "instanceId": "huskyvoice-docs" }
}

Sample Response:

{
  "data": {
    "call_id": "e95bd2f6-69e3-4918-856a-65f1197613de",
    "status": "cancelled",
    "cancelled_at": "2026-07-07T13:15:27.570Z"
  }
}

Inbound Webhook

2. Using Inbound Webhooks

Ideal for trigger-based cancellations from CRMs (e.g., HubSpot, Salesforce).

• Endpoint: https://api.huskyvoice.ai/v1/hooks/{YOUR_SECRET_TOKEN}
• Method: POST

cURL

curl -X POST https://api.huskyvoice.ai/v1/hooks/YOUR_SECRET_TOKEN \
     -H "Content-Type: application/json" \
     -d '{
       "action": "call.cancel",
       "data": {
         "call_id": "call_abc_789"
       }
     }'

Python

import requests

url = "https://api.huskyvoice.ai/v1/hooks/YOUR_SECRET_TOKEN"
payload = {
    "action": "call.cancel",
    "data": {"call_id": "call_abc_789"}
}

response = requests.post(url, json=payload)
print(response.json())

JavaScript

const response = await fetch(
  "https://api.huskyvoice.ai/v1/hooks/YOUR_SECRET_TOKEN",
  {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({
      action: "call.cancel",
      data: { call_id: "call_abc_789" }
    })
  }
);
const data = await response.json();
console.log(data);

n8n

No credential needed

Authentication uses the secret token embedded in the URL. No separate credential setup is required in n8n.

{
  "name": "HuskyVoice – Cancel Call via Webhook",
  "nodes": [
    {
      "parameters": {
        "method": "POST",
        "url": "https://api.huskyvoice.ai/v1/hooks/YOUR_SECRET_TOKEN",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "{\n  \"action\": \"call.cancel\",\n  \"data\": {\n    \"call_id\": \"call_abc_789\"\n  }\n}"
      },
      "id": "1",
      "name": "Cancel Call",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [250, 300]
    }
  ],
  "connections": {},
  "settings": {},
  "meta": { "instanceId": "huskyvoice-docs" }
}

---

Important Constraints

Call State Flow

A call progresses through these states in order:

queued → initiated → ringing → in_progress

✅ Cancellation is only possible at the queued stage. ❌ Once a call moves past queued, it cannot be stopped via the cancel endpoint.

• Timing: You can only cancel calls that are in the queued state.
• Active Calls: Once a call moves to initiated, ringing, or in_progress, it cannot be cancelled via these endpoints.
• Idempotency: Repeatedly sending a cancel request for the same call_id is safe and will not cause errors.