The Federal Supreme Court of Switzerland upheld a CHF186 million fine on telecom operator Swisscom AG over the abuse of its dominant position in the market for Asymmetric DSL broadband services.

The court rejected Swisscom's appeal of the penalty, which was imposed in 2015 by the Federal Administrative Court over claims that the telco charged improper prices for its broadband connectivity service up to end-2007.

Swisscom said it did not hold a market-leading position at the time, adding that the broadband service allowed its rival operators to market their own internet offers.

The telecom operator said it paid the fine in 2016 and that it will not impact its 2019 financial statements.