I am confident that the Office of Communications (Ofcom), the independent regulator for the communications sector, will do everything in its power to prevent silent calls. Ofcom derives its main powers and duties directly from statute rather than by delegation from my right hon. Friend the Secretary of State, so it is accountable to Parliament in its own right. The Government take the issue of silent calls very seriously because of the distress they cause to consumers. My officials are in regular contact with Ofcom and encourage us to use its powers effectively to the fullest extent.