Largely commented in press is today's announcement that Microsoft is intending (subject to antitrust approval - which seems unlikely to be a big issue at first glance) to buy Skype. Skype is an EU based company; actually one of the rare significant internet player located in Europe (in one of its smallest countries, namely Luxembourg).
Although Skype is located in Europe, VoIP regulation is still very much in limbo here, as the EU framework is not really tailored to such service (e.g., on authorization - Skype is not registered anywhere to my knowledge) .
Interesting info on how Skype sees itself falling outside the telecom regulation is available in its recent sec filing.
If you are interested in the VoIP topic, an study on VoIP was made in 2008 by WIK.