Court of Justice 25 October 2012, C‑375/11 (Belgacom SA and Others v État belge.)

OPINION OF ADVOCATE GENERAL JÄÄSKINEN delivered on 25 October 2012 ( 1 ) Case C-375/11 Belgacom SA Mobistar SA KPN Group Belgium SA v État belge (Reference for a preliminary ruling from the Cour constitutionnelle (Belgium)) ‛Telecommunications services — Directive 2002/20/EC — Rights of use of radio frequencies — One-off fees for grant and renewal — Method of calculation — Alteration of existing