| Command | Description | Direct dialing |
| 1 | Activation | *311*1# |
| 2 | Deactivation | *311*2# |
| 3 | Status check | *311*3# |
| 4 | Information | *311*4# |
Prices are inclusive of taxes.
After successful request on activation of the service phone number will be hidden by default. Then, you can switch on and switch of the service any time from menu of your mobile phone. At the same time subscription fee will be withdrawn until deactivation USSD request is made.
If "Caller Identity Restriction" service is activated on your phone, and you want that your number to be identified while calling to another subscriber (e.g. friend) use combination of keys:
*31#XXXXXXX, where XXXXXXX – number of cell phone you are dialing.
If "Caller Identity Restriction" service is activated but in the settings it is turned off, use next combination to hide your phone number:
*31#XXXXXXX. Where XXXXXXX – called number.