Our mission is to have a positive impact on 1 billion people by 2020. Being able to help charities around the world is an important part of helping us achieve this goal. That's why we allow experts to set a default charity in which to donate their proceeds to.
After you've done some paid calls, you can go to your Account > Money > Export to PayPal. Once you export the funds to your personal account, you can donate the amount earned to your charity, if you wish.
Note that we do not pay the charity directly. You have to make that transaction after exporting the proceeds from your calls.