Active Cellular System

An active cellular system is a type of wireless communication system that uses a network of base stations to provide coverage over a large geographic area.
It is called “active” because the base stations are connected to a central network and actively transmit and receive signals to and from mobile devices.

Active cellular systems are widely used in mobile communications, such as cellular phones, wireless internet, and other wireless applications.
They are also used in public safety systems, such as emergency responders and first responders, to provide reliable communication in remote or hard-to-reach areas.

Cellular networks GSM/UMTS/LTE is the most common standard for mobile communication in today’s modern life.
It is used all over the world, network’s signal is available almost everywhere. People are carrying their mobile phones anywhere at all times.
Mobile phones or user equipment are more than just a phone, they are used for constant and continuous communication, personal data is saved on it, contacts list, social networks connections, online payment, and more. The mobile cellular phone has become as personal as an ID card.

collecting IMSI numbers and assigning them to the phone’s owner, is essential for Law Enforcement investigation, not only to combat criminal activities but also for other tasks like searching for missing persons, etc.
In addition, once the target is identified, his voice and text communication can be monitored, and call and SMS recorded and reproduced upon request.

One of the key benefits of active cellular systems is their ability to provide coverage over a wide area.
This is achieved by dividing the coverage area into smaller cells, each of which is served by a base station.
The base stations are connected to a central network, which allows them to communicate with each other and route calls and data to the appropriate destination.

Another important feature of active cellular systems is their ability to provide reliable communication in a variety of environments.
This is achieved by using advanced modulation techniques, such as CDMA, which can provide reliable communication even in the presence of interference or fading.
Additionally, active cellular systems use advanced error-correction techniques to ensure that data is transmitted accurately and without errors.

In conclusion, active cellular systems are a key technology in today’s wireless communication landscape.
They provide coverage over a wide area, support a large number of simultaneous users, and provide reliable communication in a variety of environments.
They are widely used in mobile communications, M2M communications, vehicular communications, and public safety systems.

Our Soultion

Phantom Technologies has an IMSI catcher and interception system, designed to collect cellular phone identities off the air, operating in GSM, identifying predefined target Mobile Phones by their IMSI number and intercepting voice and text communication.
Our system uses man-in-the-middle technology, acting as a bridge between target mobile phones in the coverage area and the real service provider’s cellular network.
also, the system can be quickly deployed and ready to run in just a few minutes.  Predefined targets by IMSI and/or IMEI numbers, voice, and text activity can be intercepted and recorded If the target is using a 3G or 4G cellular network, it will be forced to downgrade to 2G for interception purposes.
Incoming and outgoing calls and SMS, are monitored in real-time and recorded for offline reproduction.
MSISDN (phone numbers) can be unveiled and associated with their corresponding IMSI number.


  1. Technology: An IMSI catcher is a type of cellular surveillance device that simulates a cellular tower to intercept communications.
  2. Functionality: IMSI catchers can capture the IMSI number and metadata of mobile devices in a targeted area, as well as potentially eavesdrop on calls and messages.
  3. Controversy: IMSI catchers have been controversial due to concerns over privacy and the potential for their use in unauthorized surveillance.
  4. Regulation: The use of IMSI catchers may be regulated by laws and policies governing law enforcement and intelligence agency activities.*Phantoms has developed and manufactured a wide range of comprehensive, modular, and scalable active and passive solutions for different markets.
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