Case C-389/08: Judgment of the Court (Fourth Chamber) of 6 October 2010 (reference for a preliminary ruling from the Grondwettelijk Hof (Belgium)) — Base NV, Euphony Benelux NV, Mobistar SA, Uninet International NV, T2 Belgium NV, KPN Belgium NV v Ministerraad (Electronic communications — Directive 2002/21/EC ( Framework Directive) — Articles 2(g), 3 and 4 — National regulatory authority — National legislature acting as national regulatory authority — Directive 2002/22/EC ( Universal Service Directive) — Networks and services — Article 12 — Costing of universal service obligations — Social component of universal service — Article 13 — Financing of universal service obligations — Determination of whether an unfair burden exists)