1 Telecommunications service providers must protect their customers from receiving unfair advertising as defined in Article 3 paragraph 1 letter o, u or v UCA134, insofar as the state of the art allows.
2 They shall provide customers with suitable mechanism that the providers must operate. They shall inform customers when entering into the contract and once every year about the advantages and disadvantages this mechanism. The customers must be able to deactivate and reactivate the mechanism at any time free of charge.
3 The providers may block unfair advertising.
4 If a provider is aware that one of its customers is sending or forwarding unfair advertising via its telecommunication network, it must immediately block the sending of these messages and prevent the establishment of the corresponding connections. It may disconnect customers which send or forward unfair advertising from the telecommunication network.
5 Each provider must operate a contact point for unfair advertising which originates from its telecommunication network or which is forwarded via its telecommunication network.
6 Each provider must provide a contact point for customers who are blocked or who are affected by the use of the mechanism referred to in paragraph 2. They must on request explain why the customer was blocked or why the mechanism was used. In order to comply with this obligation, all the providers involved in the communication process must supply the required information.
5 OFCOM may issue technical and administrative regulations concerning the protection of customers from receiving unfair mass advertising.
6 In the case of unfair advertising as defined in Article 3 letters o and v UCA or a breach of related foreign regulations, the competent federal office may obtain the information and request documents from providers as required in order to exercise its right to file an action and to provide administrative assistance in accordance with the above-mentioned Act.