Because we serve a wide range of customers with different needs, we only apply basic filters to our internet service. Obviously parents may want more control. Here are a few links to help, depending on the device you’re using:
iOS (Apple devices): Use parental controls on your child's iPhone, iPad and iPod touch
Google search:
Filter explicit results using SafeSearch - Computer - Google Search Help
Windows (laptops plus Nokia, Lumia or Microsoft phones): Windows help & learning
Blackberry (via Vodafone): http://www.vodafone.com/content/parents/howto-guides/blackberry_parental_controls.html
You’ll also find smartphone apps that help filter child-friendly content (see the relevant app store for your options and reviews).
See the Ofcom website for more information on how to keep your children safe online.