On your Account Settings page can update your contact information. The email address on this page is the default email address used to send you voicemail notifications.
The "Time Zone" setting will be used to place call and text message activity in your local time zone across all of the Better Voice apps.
Also on the Account Settings page you'll see an option for "Receipt Message" and "Receipt Frequency". The Call Receipt is an automated text message that is sent to your first time missed calls that 1) includes your "Receipt Message" and 2) includes a link for the caller to access details about their call, like the date and time, and keep for their records.
If you wish to edit the Call Receipt message, you can simply edit that text field. Also, if you want to adjust the frequency of the Call Receipt you can select "Never", "First Time Callers".
At the bottom of your Account Settings page you'll see your API Token. This is used for services, like Zapier.com, that can be used to sync your Better Voice activity with other services.