enjoy unrestricted talk time
and uninterrupted services
"Who called?" is a service that notifies you of calls received whilst your phone was switch off or whilst out of coverage area.
An SMS is sent, which contains details of the caller ID, date and time of call and the amount of time that calls were received.
"Who called?" is activated automatically on phones that do not have voice mail. However if you have voice mail and prefer "Who called?" then you will have to call 111 and requested that it be activated you would then type the word "on" to 222.
On the other hand a subscriber has the option to deactivate the service by sending the word "off" to 222.
It must be noted that a subscriber cannot have both who called and voice mail at the same time.