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Thinking ahead of times

VSAT Monitoring SystemWideband GSM Monitoring System


The system designed and developed as a Wideband Passive OF-THE-AIR GSM Monitoring System. The Surveillance of Um interface (b/w BTS and Mobile Handset) provides total traffic monitoring of the target. System uses state of art technology for on-line deciphering of A5.1, A5.2 and A5.0 cipher algorithms.

WIDEBAND GSM MONITORING SYSTEM” /><br />The system comes in a camouflaged case along with Control Laptop, Decryptor and Accessories. </p>
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Salient Features
  • Searching and identification of BTS control channels in full GSM900 and GSM1800 frequency range with possibility to use all receiving channels for acceleration of scanning
  • Collecting and displaying of technical and statistical information about networks with detailed indication of BTS parameters.
  • Displaying of radio frequency environment at the point of system location
  • Tasks assignment for all the receiving channels automatically or manually
  • Operation in scanning mode or data collection mode
  • Operational evaluation of received signal strength and quality at all the receiving channels
  • Saving and fast loading of the system configuration parameters
  • Support of SDCCH/8 and SDCCH/4 signaling channels formats
  • Session key calculation for A5.1 and A5.2 encryption algorithms
  • Several receiving stations can use the same decryption unit located remotely. It can be connected with the unit by wired or wireless communication channels
  • Support of HR, FR, EFR, AMR-FR, AMR-HR speech codecs
  • Support of the “hopping mode”
  • Processing of traffic channels “handover” between BTSs
  • Registration and storage of all intercepted information in database
  • Registration and storage SMS messages in database (it is supported all languages used in Windows operation system)
  • Voice session storage in PCM-linear format
  • Playback of Voice sessions in real time;
  • Displaying of dialled during the call DTMF symbols
  • IMSI/TMSI identifying by known MSISDN number (silent call or hush SMS)
  • Selection of targets using IMSI, IMEI, IMEISV, TMSI and MSISDN identifiers
  • Support of receiving channels and targets priorities
  • User authorization access to the system
  • The system software is tested on Windows XP/Windows Server 2003/Windows 7
All the information and product details shared here are for the end usage of the Government and Defence Forces