When you are testing a trial, you will have to authorize phone number(s). This is a security measure to ensure that no phone numbers will receive messages unless they have explicitly given permission.
To authorize a number:
- Click "Trial" in the menu on the left in Portal
- Click "Add phone number"
- Now fill in your number and click "send SMS"
- You will receive an SMS with a code
- Type in the code in the bottom field and click "Validate"
Your number is now ready to be used to test with! If you want, you can add multiple other numbers.
Important: after sending the code via SMS, it is possible that your pop up screen will close. To get it back, just click on the little lock beside your phonenumber in the authorization screen.