# Batch calls
One of the powerful feature of our tool that allows you to make multiple automated phone calls in a single operation typically by selecting an assistant for it and uploading a list of phone numbers in csv form with their data.
1. Click on "Batch Calls" tab from your dashboard
2. Select a phone number from your purchased or BYOT numbers. If you don't select one, a random number will be used
3. Select an assistant to handle the batch calls
4. Upload list of phone numbers (CSV file)
5. Click on "Start Batch Call"
Select phone number
> In CSV file , the first row should be the headers of the table, and your headers should not include any special characters other than hyphens (-) or underscores (\_). The column containing phone numbers must have a header labeled as "phone\_number"
