…with the basiji, it turns out:
Nokia Siemens Network has confirmed it supplied Iran with the technology needed to monitor, control, and read local telephone calls. It told the BBC that it sold a product called the Monitoring Centre to Iran Telecom in the second half of 2008.
Nokia Siemens, a joint venture between the Finnish and German companies, supplied the system to Iran through its Intelligent Solutions business, which was sold in March 2009 to Perusa Partners Fund 1LP, a German investment firm. The product allows authorities to monitor any communications across a network, including voice calls, text messaging, instant messages, and web traffic.