To activate this feature for your XXSIM, dial *146*711#
To deactivate, dial *146*710#
To check the status, dial *146*712#
When the feature is activated, Skype users can call your TravelSim number for free using special dialing format +372800XXXXXXXX, where XXXXXXXX is a TravelSim number without the prefix 372.
The call is free for the Skype caller. The cost of the incoming call for the XXSIM user is the incoming call rate in the host country plus EUR0.15/min. In case the TravelSim user is in a country with free incoming calls, the cost will be just EUR0.15 per minute.
E.g. to call XXSIM# +37254601111 for free from Skype, you should dial +37280054601111. For the Skype user the call is free. If the XXSIM user is in Russia (free incoming calls) and accepts the Skype call, he pays just EUR0.15/min.