# Cold Call Teardown with Dennis Hering | 3D Leadership

> Send 3 recorded calls. Get them broken down line by line. Send me 3 recorded cold calls at least 48 hours before we meet. I review every one and we go through them together line by line: opener, tonality, discovery, objection handling and the ask for the meeting. Before we hang up, we rewrite your opener and your answers to your 3 most common objections so you can use them on your next call block. Cancellation: free reschedule up to 24 hours before your session. No refunds after that.

- Host: Dennis Hering | 3D Leadership
- Duration: 45 min
- Location: Cal Video
- Host time zone: America/New_York
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/dennis-hering/cold-call-teardown
- Event type id: 7421317

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7421317&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 7421317,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "title": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `title` (What is this meeting about?)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.