You will need
  • - mobile phone
  • - Internet access
  • instruction to your cell phone
The easiest way is call command. To activate calling number identification restriction, dial *111*46# and the call key. After a few seconds you will receive SMS notification.
Perhaps your model of phone supports this service. Look in settings, under "Challenges."
The calling number identification restriction it is possible to connect with "Mobile assistant". Dial 111 from your mobile phone. The voice announcer will help you to activate the service. Just follow his instructions.
The service "Anti-caller ID" can be connected via the Internet. Go to the official website of MTS Log in to your account and select the service "caller identity".
If you do not wish to activate for permanent use, possible single caller. To do this, dial *31# and then phone number.