CCTV, IP Surveillance & Unified Communications

Many CCTV, Closed Circuit TV, solutions operate using a DVR (Digital Video Recorder) box connected to cameras using coaxial cable.  External access to the cameras was via the DVR which in turn would be connected to the internet.  The DVR is a controller for the cameras for motion detection, recording, PTZ (Pan Tilt Zoom) and so on.
Most new CCTV installations use an NVR (Network Video Recorder) box connected to cameras using the same network cable as your PC, Cat5 & fibre.  The NVR has all the features of a DVR.  This allows for direct access to the cameras and NVR both internally and externally.
One thing you can’t do on a DVR system is access your cameras from your VoIP phone system.
Why would you want to?  Because by making a camera, for instance, that includes a keypad you have a video door entry system that can be managed from any telephone handset, and that includes a smartphone app.
So, you’re outside your office and forgotten the entry code, press the button on the door entry system and let yourself in via your smartphone app, or if you wanted to let someone into your office without being there, again, use the smartphone app.
Since each camera has an extension on your phone system you can view using the extension number, even when out of the office using the smartphone app or softphone installed on your desktop or laptop.
This is an example of Unified Communications where you integrate Telephony and IP surveillance with Video & Voice Conferencing into one solution.

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