Scandinavian telecom operators Telenor ASA and TeliaSonera AB have dropped plans to merge their Danish operations after failing to agree acceptable terms with the European Commission, the companies said Friday. They originally announced plans to team-up in Denmark, where the combined business would have had revenue of more than 9 billion Danish kroner , at the end of last year as the two operators tried to counter fierce competition in the country which has pressured revenue and profitability and limited investments there.