Direct carrier billing is an online payment method which allows users to make purchases by charging payments to their mobile phone bill. This payment method is available to all smart phone owners.
How carrier billing works
Carrier billing typically uses a two-factor authentication method. The user enters his mobile number and receives a one-time password via text message to complete credentials. This eliminates even friendly fraud (like someone who knows you uses your number) as the buyer must have the device in-hand to complete the purchase.
Who are the players in bill-to-carrier?
Several in-app payment companies that have partnered with mobile operators, including Cashlog, Fortumo, BOKU, Buongiorno and Bango that offer SDKs that developers can integrate into their smartphone and tablet apps. boxPay has partnered with cable operators to support in-app transactions through smart TV apps.