NVR, DVR or cloud CCTV recording: how to choose
DVR, NVR, cloud and hybrid CCTV recording compared: storage and bandwidth worked out with real numbers, retention, UK GDPR processors, security and line failure.
Technology
Intrusion, video, access control and alarm signalling.
Alarm signalling after the PSTN, 2G and 3G switch-off: what to do
PSTN switch-off by 31 January 2027 and 2G closure from 2029: official dates for the UK, Italy and Spain, what stops working and how to upgrade alarm signalling.