Star Trek: The Next Generation - Crusher Tries to Contact Enterprise
In Star trek the Next Generation title "Yesterday's Enterprise" Crusher is on the Enterprise C when she contacts the ship to tell them to beam her back. When She is ready to beam back, she moves her hand towards her com-badge but doesn't press it.
Come to think of it, why is it that sometimes they can talk to their ship or crew-mates without touching the com. badge, and sometimes they have to hit it? That has never made sense to me, and I have yet to find a common denominator!!!!
In one episode, Riker was on a planet (can't remember the planet of the ep.) and was using a flashlight that looks a lot like one that you might find today. When he wanted to contact the ship, he hit the comm-badge with the flashlight and it worked. If one was to look into this, one would find that the comm-badge can be used without pressing it, and used by anyone. The only reason that the comm-badge is pressed is for security reasons. A comm-badge can even be incoded with a person's fingerprint so that only that person can use the badge.
Ok, I think somebody isn't a trekkie. However! When inside the ship, the combadges do not need to be pressed, although people sometimes do! THis is because the internal communications do not need to be activated by hand!