“Mobile companies, unlike social networks, cannot operate without a government-issued licence, and have previously been reluctant to discuss the extent of their cooperation with national security and law enforcement agencies. But Vodafone broke cover on Friday by confirming that in around half a dozen of the markets in which it operates, governments in Europe and outside have installed their own secret listening equipment on its network and those of other operators. Under this direct access system, wires suck up traffic at key points in the network, allowing unfettered access to the content of phone conversations and text messages, and in some cases delivering live location data.”
http://www.theguardian.com/world/2014/jun/06/deutsche-telekom-to-also-reveal-surveillance-data