Most people will probably want to buy at least one phone number. If you are the Admin, click on the “Administrators” tab. Next, click “Phone Numbers”.
Click "Add Number" and you will see the new phone number dialog.
Select the Area Code and Rate Center in which you want your phone number to be located. You can pick any type of destination you wish, provided you've already set it up. You may also decide whether to reject unidentified calls by checking "Block Calls Without Caller ID." If you wish you can also add a short, descriptive note. You can also add a single or multiple numbers.
When you're done, click "Save." If this was successful, you will see a message Your changes have been saved.
If you later wish to modify or remove the phone number, navigate to the "Phone Numbers", and click on the arrow and you will be presented with the phone number details.
Click "Edit Info" to change its settings or click the to remove the phone number. Please be careful when deleting phone numbers as they can not be recovered.