Don't encourage your child to use a mobile or cordless phone unless absolutely essential Don’t let your child sleep near a cordless phone or wi-fi or mobile phone switched on Don't use your mobile phone in the car with children unless you have an external aerial Don’t keep your mobile phone close to your baby or child – never in the back of the pushchair Don't let your child carry a mobile phone switched on in a pocket. More important steps >>   Encourage short calls and texting rather than calling. Ensure your child's mobile phone is turned off at night and as much as possible when not in use. Keep cordless phone calls short Replace your cordless phone with a wired phone or a low radiation phone Replace your wireless computer router with a non-wireless router (most standard routers are wireless) Replace your digital baby monitor with a wired or analogue baby monitor or a low radiation digital monitor Turn off your mobile phone when children are nearby, especially in the car and at night More important steps >>