28In order to determine whether the dominant undertaking has abused its position by the pricing practices it applies, it is necessary to consider all the circumstances and to investigate whether the practice tends to remove or restrict the buyer’s freedom to choose his sources of supply, to bar competitors from access to the market, to apply dissimilar conditions to equivalent transactions with other trading parties, or to strengthen the dominant position by distorting competition (Deutsche Telekom v Commission, paragraph 175 and case-law cited).
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