To place a local call in Brazil:
Simply dial the phone number you wish to call (usually with 8 or 9 digits).
To place an long distance call from Brazil: Dial +55 + city code + phone number. For example - to call 2111-1000 from São Paulo just dial +55 21 2111 1000
To place a call from Brazil to the USA: Dial +1 + (area code) + phone number. For example - to call MRSIMCARD, dial +1 703-9534567