A speech dialler is a cost-effective way of keeping your house in touch with you. It connects to your phone line and will call you if your alarm system is activated with a recorded message. (No monthly or annual subscription costs!)
A GSM Dialler works in the same way as the speech dialler, but instead of using your telephone line to communicate, this uses a sim card to send recordable messages. We use the CSL sims which Roam to obtain the best mobile signal available.