Beginning November 3, Etisalat will offer customers the option to pay for purchases in the App Store and for Apple Music and iTunes, directly from their mobile phone account.
The service will be available to all Etisalat customers in UAE for postpaid and prepaid mobile plans.
Using the service is simple; Etisalat customers with a new or existing Apple ID select “Carrier Billing" as a payment method in your account settings for the App Store, Apple Music and iTunes. The new payment option will be configured automatically and immediately allows for one-tap purchasing from all mobile devices.
Source: Etisalat