When you want to be given reminder at a specific time, all you have to do is to call the exchange and leave the time you want to be reminded. The facility allows you to initiate a call automatically by the exchange at a fixed time specified by the user of the telephone.
- Dial 116 (the registration code) followed by the time you wish to be reminded or worken-up at 06.15am(06.15hrs), you will dial 1160615.
- Dial 117 (the cancellation code) followed by the time you booked the call. [source]