# EMS Trial with Emvolt

- Host: Emvolt
- Duration: 20 min
- Location: In Person (Organizer Address), In Person (Organizer Address)
- Host time zone: Asia/Riyadh
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/emvolt-ykef7u/ems-trial
- Event type id: 5791992

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5791992&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": 5791992,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "phone_number": "…",
    "service": "…",
    "gender": "…",
    "smsReminderNumber": "…",
    "goal": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `phone_number` (Phone Number | رقم الهاتف), `service` (Service Interested | الخدمة المطلوبة), `gender` (Gender)
- Optional fields: `smsReminderNumber` (Phone number (Text notifications)), `goal` (You Personal Goal | الهدف الرياضي), `notes` (Notes | ملاحظات)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- `location` is optional; without it the booking uses the event’s first location.