If you're anything like me, you'll have received plenty of spam calls and texts through WhatsApp in the past. If so, you'll be glad to hear that WhatsApp has introduced a setting that'll help cut down on the spam, although it isn't exactly obvious where to find it.
Buried within the WhatsApp settings menu is a feature called Silence Unknown Callers, which pretty much does what it says on the tin and stops your phone going off when Wi-Fi called through the app by an unknown number. You'll receive a notification in the on the calls page showing you that you've been called, but your phone won't ring.
