The European Commission has written to sixteen Member States which have failed to fully implement new EU telecoms rules into national law, six months after the deadline to do so (25 May 2011). Partial implementation of the EU Telecoms rules limit consumers' rights in these 16 Member States. The new rules give EU customers new rights regarding fixed telephony, mobile services and Internet access. For instance, the right to switch telecoms operators in one day without changing their phone number and the right to clarity about data traffic management practices employed by Internet Service Providers. There is now also better protection of privacy and personal data online.