To register a Dingtone account, you can sign up with any of the following information:
Your Phone Number
Your Email Address
Your Facebook Account.
We recommend you register with your phone number. An activation code will be sent to your phone by SMS. Your phone number will also be used to find friends on Dingtone. For example, if a friend has your phone number in their phone address book, that friend can identify you as a Dingtone user in their app. What's more, you can use your registered phone number as your caller ID. So cool, right? If you don't have a phone number, with either an email address, or a Facebook account, you can still sign up Dingtone.
Reminder: No matter which personal information of yours is used to register a Dingtone account, do remember to set a password so that your Dingtone account will keep safe.