The most common and cheapest method of monitoring is achieved using the digital dialler. Digital Diallers allow one-way communication from your security alarm system to our control room, and are used for low to medium security risks.
The system is connected to your existing analogue (PSTN) telephone line. Faults with your telephone line whether intentionally or not make dialler lines the most susceptible to failure, which is why they are not recommended for high risk properties.
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