As protests continue in Iran, details are emerging of the technology used to monitor its citizens. Iran is well known for filtering the net, but the government has moved to do the same for mobile phones. 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.

Data inspection

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.

But Nokia Siemens says the product is only being used, in Iran, for the monitoring of local telephone calls on fixed and mobile lines.

Rather than just block traffic, it is understood that the monitoring system can also interrogate data to see what information is being passed back and forth.

A spokesman described the system as “a standard architecture that the world’s governments use for lawful intercept”.

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