Missed Call Notification is a service that sends you a text message showing you who called while your phone was off, out of area, or simply unreachable.
Missed Call Notification is free of charge!
To activate it, simply send an SMS message with the letter A to 4499. Press send. You will receive a message back confirming the service.
To deactivate the service: send an SMS message with the letter D to 4499. Press send. You will receive a message back confirming the service.