Learn more about the Real-name Registration Programme for SIM Cards.

Read the full text of the Telecommunications Ordinance through the Bilingual Laws Information System here.

Check out the practical advice on the use of mobile phone services such as points to note for mobile data service subscription, how to avoid mobile bill shock and unintended mobile roaming in border areas.

Learn more about the common Wi-Fi brand "Wi-Fi.HK", and search for "Wi-Fi.HK" hot spots offered by the public and private sectors totally free or with time-limited free service.

Search for the location information of all registered Wi-Fi access points, including Hong Kong Government Wi-Fi Service, in town by inputting the names of service providers and districts.

You can find a list of useful mobile applications launched by different government bureaux and departments here.

In this article, you can learn how to avoid unexpectedly high mobile bill charges and what measures the mobile operators have taken to address the problem.

In this article, you can learn more about how to stay in touch and seek help in case of emergency in the countryside.

On the Cyber Security Information Portal, you can learn how to perform health checks on your mobile devices.

You can learn about the Unsolicited Electronic Messages Ordinance, do-not-call registers and how to report suspected contraventions of the Ordinance.

Learn more about how the consumer protection is enhanced through the implementation of the Industry Code.

Check out the procedures for lodging complaints against telecom operators on possible breach of the Telecommunications Ordinance and learn more about how the complaints are handled by the Communications Authority.