Hue and cry over silent calls

We all get them and we all hate them. Silent calls from unknown landlines. If you phone back, the call is automatically rejected. Adding to the frustration is that, unlike elsewhere, South Africa has no legislation regulating the companies behind these calls.The UK website thisismoney.co.uk reports that "silent calls" are not allowed to exceed 3% of total calls to customers in 24 hours "on the grounds of the nuisance or potential alarm it can cause".