Free calls
to SMARTsim
from Skype and Viber

SMARTsim together with Skype and Viber have forged a unique partnership in order to provide free calls from Skype and Viber to SMARTsim numbers.


  • To activate this feature for your SMARTsim, dial *146*711#
  • To deactivate dial *146*710#
  • To check the status dial *146*712#

When the feature is activated, Skype and Viber users can call your SMARTsim number for free using special dialing format +372800XXXXXXXX, where XXXXXXXX is a SMARTsim number without the prefix 372.

The call is free for the Skype and Viber user. The cost of an incoming Skype or Viber call for SMARTsim users is the incoming call rate in the host country plus 0.15EUR per minute. In case the SMARTsim user is in a country with free incoming calls, the cost will be just 0.15EUR per minute.

E.g. to call +37253204388 for free from Skype and Viber, you should dial +37280053204388. For the Skype or Viber user the call is free. If the SMARTsim user is in Italy (free incoming calls) and accepts the Skype or Viber call, he pays just 0.15EUR per minute.

Important notices

  • The incoming call from Skype or Viber usually comes from the number +372800, however there is a slight possibility of other numbers.
  • When dialing on the Skype or Viber Dial Pad: if the user chooses the Estonian country code, he should dial 800XXXXXXXX because +372 is added automatically.
  • If the user dials on the Skype or Viber Dial Pad without 800 (e.g. +37253204388), he will pay with Skype or Viber credit for a call to an Estonian mobile number. The SMARTsim user is charged only for the incoming call (in case the SMARTsim user is in country with free incoming calls, the call is free for him). In this case no activation is required for SMARTsim.
  • If free calls to SMARTsim from Skype and Viber are not activated for a particular SMARTsim, when the Skype user dials 372800XXXXXXXX he will hear an automatic message: “The mobile phone is either switched off or out of the coverage area.”

Stay in touch with your family wherever you are!