Please make sure you dial the international number the following way:
93-011- Country code- city-xxxxxxxx (if landline) - city code is not needed to call on the mobile phone.
Example:
Brazil (country code 55), in the city of Rio de Janeiro (city code 21),
You will dial 93-011 - 55 - 21 - XXXX-XXXX
France (country code 33), in the city of Paris (city code 1),
You will dial 93-011 - 33 - 1 - XXXX-XXX
Check the following links for country codes: