Begin by exporting the data you need from Zoom. Log in to your Zoom account, navigate to the Reports section, and select the type of report you require (e.g., Meeting, Webinar, Usage, etc.). Choose the specific criteria for the data range and details, then export the report as a CSV file, which is a format that can be easily manipulated and imported into other systems.

Once you have downloaded the CSV file from Zoom, open it using a spreadsheet application like Microsoft Excel or Google Sheets. Review the data to ensure accuracy and consistency. Clean the data by removing any unnecessary columns, handling missing values, and ensuring that the data types (e.g., dates, numbers) are consistent with what you plan to import into Teradata Vantage.

Ensure you have the necessary credentials and permissions to access Teradata Vantage. You will need a Teradata user account with the appropriate permissions to create tables and insert data. If you are unsure about your access, contact your database administrator for assistance.

Before importing data, create a target table in Teradata Vantage that matches the structure of your cleaned CSV data. Connect to Teradata using a SQL client like Teradata Studio or SQL Assistant. Use the `CREATE TABLE` SQL statement to define the table schema, specifying column names and data types that correspond to the CSV file. For example:
```sql
CREATE TABLE zoom_data (
meeting_id INT,
participant_name VARCHAR(100),
join_time TIMESTAMP,
leave_time TIMESTAMP,
...
);
```

Convert your CSV data into a format that can be directly loaded into Teradata Vantage. Save the cleaned and verified CSV data in a local directory on the machine where you will execute the data load. Ensure it is formatted correctly for easy reading by Teradata's import utilities.

Utilize Teradata's FastLoad utility to import the CSV data into the newly created table. FastLoad is designed to quickly load large volumes of data into empty tables in Teradata. Create a FastLoad script that specifies the input file, target table, and mapping of source fields to target columns. An example command might look like:
```bash
fastload < fastload_script.txt
```
Where `fastload_script.txt` contains the necessary FastLoad commands, such as defining the input file and specifying column mappings.

After the data load is complete, verify that the data has been imported correctly. Run SQL queries on Teradata Vantage to check the number of records, inspect random samples, and ensure data integrity. Compare the imported data with the original CSV to confirm that all records have been accurately transferred and are consistent with the original dataset.

By following these steps, you can effectively transfer data from Zoom to Teradata Vantage without using third-party connectors or integrations.