QUOTE (SirWilliam @ Apr 8 2019, 09:09 AM)
My understanding is that it has only recently been introduced owing to the number of "silent" 999 calls. I can see the logic but why anyone would find themselves in a position that they can dial the number but not speak is questionable.
A scenario could be that you hear intruders in house, and you want to alert
Old Bill, but not Mr Blagg downstairs, rifling through your valuables.
Or a female hiding from a brutal partner.