IP SIP Video Intercom – What is Pre-Video?
In days gone by when somebody knocked on your door or rang the door bell you would have to open the door to see who was there. If you had a window you might be able to sneak a look without being seen or you could install a peep hole. Invariably you couldn’t vet the visitor without them knowing someone was home.
Modern video intercoms allow you to answer the door from a distance but even then you may have to answer the call to see them. With some WiFi internet based systems the call takes so long to arrive at your phone that they are often gone before you answer!
This is where pre-video saves the day. Pre-video is a video stream to your intercom panel that is visible before you answer the call. Imagine being able to see who is at the door without being detected and before deciding whether to answer or not? Pre-Video is native to our system for elements on the same LAN network. It will work via a SIP server as well as long as the SIP server supports it (early media).
An extension to pre-video is where the video itself does not originate from the door station but from a cctv camera with a wider view. In our intercoms this is called IPC Pre-Video (IP Camera Pre-Video).
So what is IPC Pre-Video and Why is it important?
IPC Pre-Video allows you to see a wider view before answering the call. The video from the door station will show what is in front of the camera. The IPC Pre-Video view will be from a remote CCTV camera placed to allow you to see a wider view from a different angle. This view will reveal anyone who is hiding out of sight of the door station camera without them realising you can see them. If you answer the call the video will switch to the door station camera view so you can speak to the visitor (after checking them first with IPC Pre-Video).
We recommend IPC Pre-View to anyone who is concerned with security.
For more information on the IP SIP Video Intercom and IPC Pre-Video please visit here