Around 44% of old cellphones are lying around unused. Between 65% and 80% of the material content of a cellphone can be recycled or re-used. Now you are able to deposit old cellphones at cellphone outlets in South Africa for recycling.
Vodacare has implemented an e-waste disposal process at its outlets (Somerset Mall, Tyger Valley, Canal Walk), and Nokia has placed e-waste bins at various other outlets (find them here). So take the opportunity to deliver your old, unused cellphones there.