There are 3 Phone Permissions you can give Users:
Go to the Phones tab (opens in a new tab) in your tonet.io platform.
Click on the phone number you want to change permissions for.
This modal will appear:
Click on the Permissions tab at the top.
Read: This allows users to read SMS messages, but not send.
Send: This allows users to send (and read) SMS messages.
Call: This allows users to make outbound using the phone number.
Change permissions as needed by ticking the desired boxes.
Click Confirm, and wait for the modal to refresh.