# ISR – Cal.com booking page

> Book a meeting with ISR on Cal.com.

Booking page: https://fachhochschul-errichtungs-und-vertriebs-gmbh.cal.com/internationalstudentresidence

## Event types

- [Registration of Residence](https://fachhochschul-errichtungs-und-vertriebs-gmbh.cal.com/internationalstudentresidence/meldeamt): 15 min, confirmed instantly, event type id 7014977. Room: 1.06 on the 1st Floor You need: signed and filled out "Meldezettel" (Registration Form) Passport Information: You can find the "Meldezettel" in your Welcome Map Details: https://fachhochschul-errichtungs-und-vertriebs-gmbh.cal.com/internationalstudentresidence/meldeamt.md
- [30 Minuten Termin](https://fachhochschul-errichtungs-und-vertriebs-gmbh.cal.com/internationalstudentresidence/30min): 30 min, confirmed instantly, event type id 7014978. Details: https://fachhochschul-errichtungs-und-vertriebs-gmbh.cal.com/internationalstudentresidence/30min.md

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=<event type id>&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

Each event type's `.md` document lists its required booking fields and the `POST https://api.cal.com/v2/bookings` request (`cal-api-version: 2026-02-25`).

## More

- API docs: https://cal.com/docs/api-reference/v2/introduction