Sometimes, when a person calls 999, talking might put them in danger. It's a terrifying thought, but being prepared for every eventuality is the best way to be safe.
If the person dialling the emergency services can't speak, the operator will ask them to make a noise without actually speaking, or tap their phone.
If the operator still hears no response, it’ll be assumed the call was accidental and it won’t be investigated further.
But sometimes, it isn't a pocket-dial.
In the case of an intruder, for example, making any noise could potentially put someone in further danger.
If making any noise could put a caller at risk, there’s a third option that will ensure help is dispatched.
If you ever find yourself in a situation where you need to call for emergency help without making a noise, call 999, then dial 55 when you get through to the switchboard.
The procedure is called “Silent Solutions". It’s not something many people are aware of - but remembering it could save your life.