European regulators are to investigate telecoms companies' data traffic management practices to promote transparency and net neutrality.
Supporters of net neutrality believe all web traffic should be treated equally and are opposed to telecoms companies giving priority to some services over others.
While the European Commission accepts that traffic management is necessary to avoid congestion in the face of a data explosion mainly due to video streaming services, Digital Agenda Commissioner Neelie Kroes plans to check telecoms companies are not going too far.
Kroes is expected to announce an investigation this week into whether telecoms companies are giving consumers enough information about their traffic management policies, according to the Financial Times.
The investigation is aimed at exposing mobile operators that block customers from using voice over internet protocol applications, fixed-line and mobile operators that slow down traffic in an anti-competitive way, and operators that provide download speeds that are much slower than those advertised.
Net neutrality has been a hot topic in the US and Canada for several years. The US, Canada, France, Norway and Sweden have adopted or are considering some form of regulatory requirements relating to traffic management.