SMS alarm system uses electrical, optical or acoustic signals over cable or free space links to send SMS message from GSM module

摘要

An SMS (Short Message Service) alarm system uses electrical, electronic, optical acoustic signals from digital or analogue radio receivers or sound processors received over cable or free space links to send an SMS message from a GSM (Global System for Mobiles) module. Independent claims are included for systems generating speech, pager or fax alarm signals.