Swisscom is appealing to the Swiss Federal Court over a ruling by the Federal Communications Commission (ComCom) which ordered price cuts of up to 63 per cent on leased lines.
"Swisscom disputes that interconnection also covers leased lines and is appealing against arbitrary price-fixing in a competitive environment," Swisscom said in a statement.
It also said its prices were competitive and in line with the European average and noted ComCom's decision, announced on October 2, was based on 1998 prices, which have been reduced.
It said it currently faced competition from cable television operators and would soon from other operators.
swissinfo with agencies