“Extension” - is the extension of the telephone line (PBX) or the Centrex system. It works as an association and allows calling to certain telephone sets without the necessity of dialing the telephone number, but only by dialing a short combination of digits, reaching the desired subscriber.
0800 Empresarial
0800 Fixo = R$ 0.40
0800 Cel = R$ 1.10
Ligação Locais
Fixo para todo brasil somente R$ 0.08
Internacionais
R$ 0.10