Find useful consumer information about fixed line services from Office of the Telecommunications Authority (OFTA) through this link. There are information about IP telephony service, guidelines on choosing service providers, tips to handle network congestion and more.

You can refer to this list of websites for fixed telecommunications network operators or services providers offering residential telephony service in Hong Kong and access their websites.

Check out the procedure to lodge a complaint against a telecommunications operator on possible breach of the Telecommunications Ordinance. You can also learn more about the jurisdiction of the Office of the Telecommunications Authority (OFTA) and its handling of consumer complaints through this website.