A speech dialler is a device that will automatically contact specific people, either via phone call or text message, when a system is activated, providing the ability to be notified of events such as a burglary or fire, as they happen. The SD-LTE is a universal speech dialler that offers enhanced user capabilities with speech and text messaging over 4G (VoLTE), 3G, or 2G, providing a fast and secure connection to up to 8 recipients without the need of a phone line.