How to 

Making international calls with Lyca Mobile is quite easy. Just dial 011, followed by the code of the country you plan to make the call to, the area/city code of the destination, and the phone number. 
Here’s an example. To make an international call to Rio de Janeiro, Brazil, you would dial 011 – 55 – 21 – 1234-5678. 
Note that international calls cost extra. Make sure you have a valid plan or that your plan has relevant international calling benefits before making one.