GSM Semi-Active

Semi Active systems are used for GSM interception of 5.1 encrypted calls. With the active component of the system the target phone will be picked up within milliseconds by using the 5.2 encryption mode. The 5.2 ciphering key will automatically be calculated, and the authentic parameters of the target phone will be taken. These parameters are cloned onto another mobile phone (cloning box) attached to the semi active system establishing the link back to the real network (base station). The target’s calls are now routed through the cloned mobile phone maintaining the same encryption, while target identity, and recording for all incoming and outgoing calls is realized. Multi-channel systems are available for recording of several calls at the same time.