Does the AU 288 cellular interceptor or the AU 286 cellular telephone scanner work on digital cell phones or with the GSM network?
No. The interceptors will only work with 800/900 MHz phones which means analog (AMPS) mode. Dual mode phones can be switched from digital to analog. And when digital mode is not available or the digital network is down, telephones will automatically switch from digital to analog. The units will not handle GSM, TDMA and CDMA technology or ranges such as the 1850 to 1910MHz band and the 1930 to 1990MHz band because those are used for digital telephones.