Mobile operators' complaints prompt inquiry into iPhone selling tactics
According to a report in the Financial Times, the inquiry was prompted by complaints from some of Europe's mobile operators.
They accuse Apple of placing restrictions on deals operators can make with other smartphone makers.
The inquiry will look at those allegations, as well as question operators on Apple's policy of how marketing budgets are used and whether it forces them to buy a minimum number of iPhones.
According to the questionnaire: "The Commission has information indicating that Apple and Mobile Network Operators ("MNOs") have concluded distribution agreements which may potentially lead to the foreclosure of other smartphone manufacturers from the markets."
However, industry analysts have said the findings are unlikely to result in any action.
In order for the Commission to act upon the findings of the report, it would have to find Apple dominant in the European smartphone market.
Samsung's success alone is likely to result in the investigation going no further, they said.