We may sometimes require our calls to be forwarded when we are busy and unavailable to take them. Afterward, you may need to cancel or deactivate the call forwarding instruction on your Cell C mobile phone to enable you to take your calls.
Read: How to cancel call barring on Vodacom South Africa
Here is how to deactivate call forwarding on Cell C:
Simply dial ##002# and all divert/forwarded calls will be canceled.