Questões da Prova CESPE - 2006 - ANATEL - Especialista em Regulação - Contabilidade
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Six out of ten Brazilians don’t have a cellular phone yet.
The more people use the cellular telephony the more responsibility it takes.
Cellular phones have substituted for the fixed telephone system.
The mobile phone system aims at reaching every Brazilian social class
There are cases when Brazil and USA have launched multimedia applications at the same time.