You can keep calling through the 21 while you are in other states or outside your registration area. You call from your cell phone through the 21 from anywhere in Brazil, with the same DDD rates of your local calls.*
Therefore, when you go on a holiday or on a business trip, keep using the 21 from your cell phone and call anywhere in Brazil.
For domestic calls:
For international calls
Register the 21 on your cell phone
Add the 21 before all the numbers registered in your cell phone agenda. It is much more convenient when you make your DDD calls, wherever you are.
* VC2 and VC 3 calls when you are traveling cost the same as VC2 and VC3 calls made from the cell phone registration area.
Register the 21 on your cell phone
