Video door-phone (also known as video door entry or video intercom) is a stand-alone intercom system used to manage calls made at the entrance to a building (residential complex, detached family home, workplace, etc.) with access controlled by audiovisual communication between the inside and outside. The main feature of video door entry is that it enables the person indoors to identify the visitor and, if (and only if) they wish, engage in conversation and/or open the door to allow access to the person calling.
Everyone is familiar with paper. Some people, however, seem to treasure every sheet. Others treat paper with less respect, since it always seems available anywhere. Which attitude is more constructive? Reflecting on this question, one thing that occurred to me is that our feelings about small things in everyday life, even seemingly insignificant things, can be a very critical subject, with our very lives affected by our judgment. For a casual attitude toward objects can also extend to human beings. Perhaps it pays to appreciate everything. For this can foster in us a mental attitude of appreciation toward everyone.
By Konosuke Matsushita, founder of Panasonic Corporation