++++ Free movement of goods ° Quantitative restrictions ° Measures having equivalent effect ° National rules prohibiting the marketing of telecommunications terminals which have not been approved, even where those are stated to be intended for re-export ° Whether permissible ° Corollary of the power conferred on the Member States by Directive 88/301 (EEC Treaty, Art. 30; Commission Directive 88/301/EEC, Art. 3)