The SCL-5020 is a multi-channel off the air passive GSM Monitoring system intended for Intelligence and Government Organizations to ensure interception and deciphering of voice & SMS communications from GSM-850/900/1800/1900 cellular network standards. System can decipher A5/0, A5/1 and A5/2 ciphering algorithms in real time, used in the GSM networks

Semi Active OFF-THE-AIR GSM Monitoring System SCL 5020SE has universal operating capability& can be used to intercept communications from any GSM service providers. System supports decryption of both A5/1 and A5/2 encryption algorithms in real time.

The SCL-5020C is a Passive multi-channel tunable CDMA Monitoring system designed to monitor the voice conversation, Sort Text Message and service channel information automatically form the CDMA network. System operates in 450MHz, 850MHz & 1900MHz CDMA band.

The A5.1 decryptor is used to decrypt GSM communications which are encrypted using the GSM A5.1 encryption standard. This equipment is used in conjunction with the Semi-Active or the Passive GSM monitoring system. The system is capable of real-time decryption of A5.1 encrypted GSM communications. A5/1 decipher can serve more than one GSM Interception Systems.