... AMPS, HCMTS , CDMA , TDMA ,TACS , PCS Jet-990 Mobile Phone Intercept SystemThe Jet-990 is a tactical 'off air' GSM ... , AMPS, HCMTS , CDMA , TDMA ,TACS , PCS , Mobile phone Intercept system, designed to intercept all cellular telephone , This system ... air. It is undetectable and does not interfere with the network. Applications: Acoustic Isolation: Theaters, Cinemas, Concert halls, Lecture room ...