Cell phone operator
Sharp fall for Vodacom, MTN shares
The shares dipped after Icasa said it planned to bring down the cost of calling between networks.
Regulators throughout Africa have come down hard on slacking cellphone providers.
The R2K Campaign protested in Cape Town calling for more affordable cellphone rates.
The Right2Know Campaign says it will focus on cellphone companies in 2013.
Britons will be able to see all the Olympics sporting action live on mobile devices.