Untraceable Phone, Samsung D980 DuoS.

The new version untraceable cell phone is made to protect calls against control via a provider or via different complexes that intercept GSM.  The phone is based on Samsung D980 DuoS.

The phone has the following functions:

· Function change IMEI

· Function A5 tracer

· Function PING

· Function Channels

· Function TSMI

· Function Delete Memory

On the screen of the device there is a lock icon that shows whether the encryption on or off is and also which algorithm the provider of the connection uses.

Function change IMEI Function Change IMEI is intended to protect calls against control via the provider of the connection. This function is EFFECTIVE ONLY IN COMBINATION WITH SIMULTANEOUS REPLACEMENT OF THE SIM CARD in the phone.  In some cases, this function can also protect you against different kinds of complexes, which can be active and passive. 

If your phone is controlled the following structures are used:

1. Your phone number (it is not broadcasted, but the provider does know it)

2. IMSI – the unique name of the SIM

3. IMEI – the unique name of the phone.   

If you change the IMEI and the SIM that you bought anonymously or for somebody else, all the  identification structures which you can be controlled with, will be changed. So that the provider does not know who he should control.    If you change only the SIM or only the IMEI it will not have any result and you will still be controllable like you have not changed anything. If you are being controlled using a complex, the simultaneous change of the IMEI and the SIM will temporary stop control. Because all the identification structures, which are recorded in the selection list of the complex, were changed, the complex has to make extra efforts to get your new identification structures. In addition, often the complex cannot directly see that it has no control over your phone anymore.   It is better not just to turn off the device, but to remove the battery from the working device so that the complex cannot register that the phone was switched off. Active complexes may not work correctly, so they can be detected by additional features. For example, a test of the device with only changing of IMEI on one of the most functional and popular active complexes has shown that when the phone comes to the area which is covered by the complex, the phone seems to work normally, also the level of a signal is shown, but it is impossible to call from this phone, also the incoming calls cannot be received.

Function A5 tracer

This function is intended to protect the phone user against control over his conversations via active complexes which intercept GSM. Active complex is an equipment which emits basis stations and makes phones work not via real basis stations but via this equipment – a false basis station. A real basis station sees a false basis station as a regular phone.

A false basis station can:

1. Turn off the encryption

2.Reduce the level of the encryption3.      

Do not change the level of the encryption.  There are no other  means, except the ours, which can identify such stations. A complex which does not disable the encryption can be normally detected by an icon with an open lock that appears on the display, but such icon is not available in all devices. New devices from Nokia and Samsung do not have such icon, they are designed in this way so that the user could not see that he is being overheard. The most common complexes of today are the complexes which reduce the level of the encryption. They do it continuously or during the calculation of the session key, after that the encryption of the complex becomes the same as the encryption of the provider. Active complex which does not reduce a level of the encryption has a built-in processing mechanism

A5.1. Function
A5 tracer is not intended to detect such complexes. For this the device has function Channels, which will be discussed later. Formerly, half active complexes were popular, they turned the encryption of the controlled phone off.  Our device detects any active or half active complex with 100% certainty.  Regardless of a price and a producer. 

How does Active complex work:
To a building where a person which has to be overheard is being can come a car, an equipment can also be installed in the building. A normal phone works so that it chooses automatically a basis station with a strongest signal. The false station becomes this strongest basis station for a controlled phone. The phone sees it as a real basis station and begins to work with it.  A provider of the false station gets full control over your phone. He can not only listen to your calls and read your text - massages, he can also manage your phone. The capabilities of such complex to manage your phone depend on perfection of the complex. There are complexes which can turn on a microphone of the controlled phone at a distance. 

TMSI

The "Temporary Mobile Subscriber Identity" (TMSI) is the identity that is most commonly sent between the mobile and the network. TMSI is randomly assigned by the VLR to every mobile in the area, the moment it is switched on. The number is local to a location area, and so it has to be updated each time the mobile moves to a new geographical area.

The network can also change the TMSI of the mobile at any time. And it normally does so, in order to avoid the subscriber from being identified, and tracked by eavesdroppers on the radio interface. This makes it difficult to trace which mobile is which, except briefly, when the mobile is just switched on, or when the data in the mobile becomes invalid for one reason or another. At that point, the global "international mobile subscriber identity" (IMSI) must be sent to the network. This is a unique number that is associated with all GSM and UMTS network mobile phone users. The number is stored in the SIM card. The IMSI is sent as rarely as possible, to avoid it being identified and tracked.

A key use of the TMSI is in paging a mobile. "Paging" is the one-to-one communication between the mobile and the base station. The most important use of broadcast information is to set up channels for "paging". Every cellular system has a broadcast mechanism to distribute such information to a plurality of mobiles.

Size of TMSI is 4 octet with full hex digits and can't be all ones.

>> Delivery period is approximately 10 workdays <<