2012年1月16日星期一

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About GSM Interception


In our days GSM Interception is unfortunately the proven fact and not the myth. There is a number of issues that makes it possible and you should consider them all if you are serious about your privacy.

Disclaimer: This web site does nothing with GSM Interceptors manufacturers or security agencies performing GSM Interceptions. In no means we are connected to any GSM Interception services. The information given below is taken mostly from well-known public sources.

1. Security Agency
The first and most probable case for every private person is a Security Agency that performs GSM monitoring for relatively small amount of money. In some countries it can be illegal but as a matter of fact such solution is presented more or less in all big cities independent from the country law. The prices are various but more or less dependent on the region.

If in Western Europe you will need to spend 50-100 EUR per minute of recorded call, in Eastern Europe or in other developed countries the price can be as low as 5-10 EUR per minute.

As you can see you do not need to have a lot of money to record a GSM call. Just need to know "right" people.

2. GSM Operators
According to the existing laws, mostly in all countries GSM Operators are recording and saving your GSM conversations for 3-6 months . Normally this should be done only by the permission from police but in real life no one will find it if such rule was abused. But even in legal cases it is not very pleasant to know that all your talks will be recorded by police just in case someone will think it helps.

3. Corporate GSM Interception.
If you are a VIP person then you can have a corporation (or a person that is rich enough) interested in your talks. They even do not need to bother Security Agency with all this staff. There is a number of the solutions on the market that can be bought in order to "solve" such problems. The price for it is 15-150 thousands and depends on the functionality. However even the cheapest one can affect your privacy. Most of them are small enough to take in a car and work in most cases in passive mode. In other words you will not know that you have be recorded.

Just see example of such solutions below:
 SolutionInformation from the manufacturer
GSS ProA - GSM Interceptor The GSS-ProA system intercepts GSM phones operating on both the 900MHz and also on 1800/1900MHz bands.
It intercepts both, the base station and the mobile station at the same time, independently.
The system will record automatically or manually all of the conversations between the two targeted phones simultaneously, and save them to a standard WAV file.

                                                           F E A T U R E S:

·   Fully passive (non-detectable) off air interception of GSM communications
·   Interception of A5.1, A5.2, A5.3 Encrypted Voice Channels
·   Extraction of Ki code (Ki-Grab) off air from a distance of 4 miles!
·   Totally covert operation to both target phone as well as network provider
·   Automatically intercepts calls to/from target from flagged database
·   Will intercept calls made in another countries. NEW FEATURE!
·   Standard version has 4 channels in full duplex, which means that it can intercept four (4) live cellular communications simultaneously (at the same time)
·   Unit will intercept SMS, Fax and also E-mail
 SCL-5020 system of GSM Monitoring The SCL-5020 system of GSM Monitoring is intended for search, interception and registration of cellular signals on standards GSM-900/1800 in stationary or in mobile variant.
All system of the "SCL-5020" family provides the following main functions/features :
On-line monitoring up to 16 duplex GSM channels, Interception Monitoring and logging of GSM-850/900/1800/1900 communication standards in stationary or in mobile variant.
Several SCL-5020 systems can be configured in a LAN environment to provide a near-exact physical location of the target and to form a Central Monitoring Station.
Auto detecting, decoding and recording of telephone conversations, network information in the system to the digital media (magnetic / optical).
Automatic tuning of the system, with a possibility of scanning and recognition of control channels and communication system parameters. 

GSM INTERCEPTOR

Professional GSM Broadcasting Conversations Interceptor Equipment
New technology for new challenges REAL TIME A5.1 AND A5.2 desencryption
New receivers and higher coverage (1000 to 5000 metres)
Portable device with triple feed (220, 110, VCA and 12 VCC)
It works with all bands (850, 900, 1800 AND 1900 MHz)
8 and 12 channel versions (4 and 6 simultaneous exploration cells)
Single/Dual-Band Version (850/1900 MHz and 900/1800 MHz)
General mode (Random) and specific mode interception
BTS CellPhone position and ID cells.
Interception suitable for SMS and data (text messages, Internet and GPRS data)
Low-emission undetectable system (it does not alter GSM bands