In Germany, the use of mobile signal boosters is regulated by the Federal Network Agency (Bundesnetzagentur). According to their regulations, it is generally legal to use mobile phone signal boosters for personal and business purposes, provided that these devices comply with specific technical standards and do not cause interference with public telecommunications networks. No special license is required for the use of these boosters as long as they are certified and operate within the designated frequency bands[1][5].
However, when it comes to emergency services, the situation is more nuanced. The German Telecommunications Act mandates that emergency calls must be able to reach the appropriate service centers without delay. This includes ensuring that caller location information is available to emergency services[7]. While signal boosters can enhance cellular reception, unauthorized or improperly configured devices can disrupt network operations, potentially affecting emergency communications. Therefore, using a signal booster that does not adhere to regulations could lead to legal consequences, including fines or confiscation of equipment[3][5].
In summary, while mobile signal boosters can be legally used in Germany under certain conditions, their use in relation to emergency services must be approached with caution to ensure compliance with telecommunications regulations and to avoid any disruption of critical services.
Citations:[1] https://mysignalboosters.com/de/faqs/
[2] https://www.mobilesignalguru.com/mt/blog/are-mobile-signal-boosters-safe-to-use/
[3] https://www.reddit.com/r/AskAGerman/comments/191j9b2/is_installation_and_using_a_mobile_signal_booster/
[4] https://www.pta.gov.pk/assets/media/ad_cons_paper_10102020.pdf
[5] https://www.mobilesignalguru.com/blog/legal-requirements-and-regulations-for-mobile-signal-boosters/
[6] https://www.weboost.com/blog/regulation-myths-about-cell-signal-boosters
[7] https://www.bundesnetzagentur.de/EN/Areas/Telecommunications/ServicerProviderObligation/EmergencyCalls/LegislativeFramework/LegislativeFramework_node.html
[8] https://mysignalboosters.com/de/terms-and-conditions/