Hide your phone number when you make a call.
Italian (can have some mistakes)
French (can have some mistakes)
German (can have some mistakes)
Portuguese (can have some mistakes)
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On GSM mobile networks, callers may dial prefix #31# before the number they wish to call to hide caller id.
Some countries use a specific prefix (look it for in the prefixes list), another countries don't allow to make hidden calls or maybe your phone carrier has this function disabled as default and you need contact them to enabled.
If you know the prefix to make a hidden call in your country let us know and will included in our application