revlis: I believe the following section from the ETSI Policy is what brings French law into play. However, reading it I am not sure how it interrelates to what they call national or supranational law
12 Law and Regulation
The POLICY shall be governed by the laws of France.[/c] However, no MEMBER shall be obliged by the POLICY to commit a breach of the laws or regulations of its country or to act against supranational laws or regulations applicable to its country insofar as derogation by agreement between parties is not permitted by such laws.
Any right granted to, and any obligation imposed on, a MEMBER which derives from French law and which are not already contained in the national or supranational law applicable to that MEMBER is to be understood as being of solely a contractual nature