44 Section 109 Duration of a communications service agreement A communications service agreement shall be valid until further notice unless otherwise agreed. A telecommunications operator may enter into a time-limited agreement with the consumer for a maximum period of 24 months. If the telecommunications operator offers an agreement exceeding 12 months, the consumer shall also be offered the possibility to enter into a timelimited agreement of 12 months. A telecommunications operator shall not extend a time-limited agreement by another timelimited agreement without concluding a new agreement in writing with the subscriber. Section 110 Network neutrality An Internet access service provider may not restrict a subscriber’s or user’s opportunity to use an Internet access service, except: 1) in a way necessary for implementing the main features of Internet access service quality, data transfer rate variation or other services that are clearly and extensively defined in the communications service agreement; 2) on the basis of a decision issued by an authority or court; 3) for the purpose of information security or to remedy an interruption in a way provided in sections 243, 272 and 273 or in some other similar way provided in law; 4) for the purpose of meeting quality requirements referred to in sections 243 and 244. The restrictions referred to in paragraphs 1 and 4 of subsection 1 above shall be implemented in a non-discriminatory manner and they may not: 1) restrict the intended use of an Internet access service; 2) prevent or restrict a subscriber’s or user’s ability to use the applications and services they wish; 3) unreasonably slow down the Internet access service. An Internet access service provider must ensure in service marketing and by other means that the subscriber and user have access to adequate information about the essential effects that the restrictions referred to in subsection 1 above possibly have on the use of the service. Ficora may issue further regulations on the assessment of restrictions and procedures and their use in safeguarding the availability and quality of an Internet access service. Ficora may issue a decision obliging the Internet access service provider to: 1) undertake measures necessary to prevent the interruption referred to in subsection 2; or 2) refrain from measures and restrictions that will cause an interruption referred to in subsection 2. When issuing regulations and decisions in accordance with subsections 4 and 5, Ficora shall take into account the general quality, prices and properties of Internet access services available to users. Section 111 Right to use an internal communications network