Wailing stone

a device used for communication

Go check the wailing stone to see if there are problems

Wailing stone by xXeliXx August 29, 2017

stone walling 

To put up artificial or contrived barriers to slow down or stop someone's progress.

I've been trying to get to the bottom of this problem but she keeps stone walling me.

stone walling by John Hubbard October 19, 2006