That’s a funny way to say “Trump campaign manipulates emotions of grieving parents”

https://mander.xyz/comment/13282265

Not sure if this is what you’re describing, but phones like the one you pictured have a reversible tab for use if you mount the phone to a wall - if the tab is sticking up, it keeps the receiver from falling off the cradle.

Here’s a site selling them, but it has a diagram showing where it’s located:

https://www.zcover.com/store/catalog/zCProduct.php?wp=WP_CI881CTR&zPath=212-213-255