4. The tools to be used for communicating by electronic means, as well as their technical characteristics, must be non-discriminatory, generally available and interoperable with the information and communication technology products in general use.
32004L0017 - Utilities (3rd generation)
Article 48.4
4. The tools to be used for communicating by electronic means, as well as their technical characteristics, shall be non-discriminatory, generally available and interoperable with the information and communication technology products in general use.