Download AirCard Watcher for MOBITEK S80 3G Modem Download link: https://mobitek-system.com/Download/blog/MOBITEK%20S80_AirCard_UMTS_Watcher_Generic_Build2584.zip More Information How to Use AirCard Watcher to Connect MOBITEK S80 3G Modem to 3G Network How to Configure AirCard Watcher How to Configure MOBITEK S80 SMS Modem to Use SMS API and to Access Internet via 3G at the Same Time