5) any restrictions on the use of terminal equipment made available to the subscriber by the provider of telecommunications services, if imposed or mandated by the service provider; 6) data on the functionality of the service provided including information on: a) whether or not calls to emergency numbers are being provided, b) whether or not caller location information is being provided, c) any limitations on the routing of calls to emergency numbers, d) any limitations on access to or use of services and applications, e) the procedures put in place by the service provider to measure and shape network traffic so as to avoid filling or overfilling a network link, together with information on how those procedures could impact on the quality of services provided, f) the activities that the service provider is entitled to undertake in the case of breaches to security or integrity of the network and services; 7) data on the quality of service, in particular the minimum service quality levels offered, including the time for the initial connection and other quality of service parameters, if defined by the President of UKE under Article 63 (2a); 8) ways of informing the subscriber about exhaustion of its data transmission package in the case of the Internet access service provided over the public mobile telecommunications network and about the possibility to monitor the package usage level by the subscriber; 9) the scope of maintenance services and means of contacting the entities offering these services; 10) the scope of liability for non-performance or inadequate performance of the agreement, the amount of compensation as well as the manner and time limits for the payment thereof; 11) the principles, procedure and time limits for filing and considering complaints; 12) the method of obtaining information on up-to-date tariffs and the costs of maintenance services; 13) the principles of including subscriber's data in a directory in the case of agreements for the provision of voice services; 14) ways to provide information to the subscriber about any risks related to the service provided, including on the ways to protect security, privacy and personal data; 15) the type of activities that the service provider may undertake in the case of breaches to security or integrity of the network or services or risks and vulnerability to such risks; 16) recommended ways to secure the telecommunications terminal equipment by the subscriber. Article 60a. 1. A provider of publicly available telecommunications services: 1) shall deliver to the subscriber being a party to an agreement concluded in a written or electronic form the contents of each proposed modification to the agreement terms and conditions, including those specified in the rules and regulations for the provision of publicly available telecommunications services, unless the subscriber made a request specified in paragraph 1b, 2) shall deliver to the subscriber who is not a party to an agreement concluded in a written or electronic form and who has made available his/her data referred to in paragraph 1a the contents of each proposed modification to the agreement terms and conditions specified in the rules and regulations for the provision of publicly available telecommunications services, unless the subscriber made a request specified in paragraph 1b, and 3) shall publicly announce the contents of each proposed modification to the agreement terms and conditions specified in the rules and regulations for the provision of publicly available telecommunications services – at least one month prior to the introduction of these modifications.