I have noticed phones with a handset (like the one in the image) have a little cover that resembles something like a cold camera shoe under the bottom of the handset’s top speaker holder. Is there a use for it? It has a line bump in the middle, but it doesn’t go all the way from both sides, it leaves a gap. I have also seem some of them have extra space on the top of the cover, and some don’t.
Or maybe you meant this thing. Yeah, it keeps the handset in when the base is mounted vertical. You can see that it’s slanted in the back.
That’s so it slides in and out on this other slanted lip on the handset instead of getting caught on it. You can take the handset off just by pulling it directly away from the wall.