Default Number Rule: During your first use of the service, the phone number associated with your App account will be set as the default notification number, and this number cannot be modified at this time.
Other Receiving Numbers: You can add family members' numbers to simultaneously receive notifications across multiple accounts. To add the phone numbers you wish to receive notifications for, click the "Smart -- Phone Notification" page and then click the "Phone/SMS Notification Settings" button. Unwanted numbers can be removed.