Case C-282/13: Judgment of the Court (Third Chamber) of 22 January 2015 (request for a preliminary ruling from the Verwaltungsgerichtshof — Austria) — T-Mobile Austria GmbH v Telekom-Control-Kommission (Reference for a preliminary ruling — Electronic communications networks and services — Directive 2002/20/EC — Article 5(6) — Rights of use for radio frequencies and numbers — Directive 2002/21/EC — Article 4(1) — Right of appeal against a decision of a national regulatory authority — Meaning of ‘undertaking affected by a decision of a national regulatory authority’ — Article 9b — Transfer of individual rights to use radio frequencies — Reallocation of rights to use radio frequencies following the merger of two undertakings)