M2M can provide a back-up system in case the landline is cut. But the reality is that it could be cheaper to do away with the landline in the first place. Should the thief be sophisticated enough to jam any radio systems, GPRS units can even recognise that they are being jammed and send through emergency signals to your site. In addition we are seeing an increasing use of CCTV cameras sending data over GPRS. This could be as simple as a jpeg generated on the fly and sent by email to streaming video live using sophisticated compression techniques.
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