Vodafone Group, Plc, headquartered in the United Kingdom, is one of the world's largest telecommunications companies. Excerpts from the revenue recognition disclosure included in its 2009 annual report are reproduced below.

Note 2: Significant accounting policies
Revenue
Revenue is recognized to the extent the Group has delivered goods or rendered services under an agreement, the amount of revenue can be measured reliably and it is probable that the economic benefits associated with the transaction will flow to the Group. Revenue is measured at the fair value of the consideration received, exclusive of sales taxes and discounts.

The Group principally obtains revenue from providing the following telecommunication services: access charges, airtime usage, messaging, interconnect fees, data services and information provision, connection fees and equipment sales. Products and services may be sold separately or in bundled packages.

Revenue for access charges, airtime usage and messaging by contract customers is recognized as revenue as services are performed, with unbilled revenue resulting from services already provided accrued at the end of each period and unearned revenue from services to be provided in future periods deferred. Revenue from the sale of prepaid credit is deferred until such time as the customer uses the airtime, or the credit expires.

Revenue from interconnect fees is recognized at the time the services are performed.

Revenue from data services and information provision is recognized when the Group has performed the related service and, depending on the nature of the service, is recognized at the gross amount billed either to the customer or the amount receivable by the Group as commission for facilitating the service..

Revenue for device sales is recognized when the device is delivered to the end customer and the sale is considered complete. For device sales made to intermediaries, revenue is recognized if the significant risks associated with the device are transferred to the intermediary and the intermediary has no general right of return. If the significant risks are not transferred, revenue recognition is deferred until sale of the device to an end customer by the intermediary or the expiry of the right of return.


Required:
On the basis of the information the disclosures provide, compare revenue recognition under IFRS (as applied by Vodafone) with that in the United States.