A secure democratic Net is a fundamental right

During the investigations into the terror attacks in India the Indianese police discovered that by tracing the mobile phone calls that were being made those being done with Chinese Mobile phones were in fact not traceable because in too many cases those had the same IMEI numbers (a sort of unique identifier for each phone).

"Short for International Mobile Equipment Identity, a 15 to 17 digit unique serial number printed on the back of a mobile phone handset is referred to as the IMEI number. A combination of the codes representing the manufacturer's name, model and type of the phone, the IMEI number gets registered with the mobile phone service provider as soon as a phone is activated. IMEI number is required to trace a phone as well as to retrieve its call history"  source 

This means that any country that has any law in which the law officers have the right to search for traces and content of mobile phone calls would be wopping mad to certify any sale of chinese mobile phones, or let their telecom operators use them for their own SIM cards. India has decided that from today Chinese mobile phones without such a number may not function anymore.

China is in the process of installing together with the international GSM association a verification system for such process but meanwhile this isn't errorproof. These mobile phones are very popular because they are so cheap.

At the other hand Chinese dissidents may have now some freedom on the phone...

Someone in Danmark is trying to set up a list with all the identifyers that are in such a number. You can help him.

If you are looking for one in Google do - chinese mobile phones site:be - (or whatever country) some of the sites are scams or even malware infected as many chinese sites are