Brazil: Telemarketing companies have mandatory prefix from March 10

RIO DE JANEIRO, BRAZIL – From Thursday, March 10, the use of prefix 0303 in calls made to customers by telemarketing companies is mandatory. The change, announced at the end of last year by the National Telecommunications Agency (Anatel), aims to help users quickly identify this type of call and decide whether to take it.

The code will appear at the beginning of the number of any call aiming to offer products or services. The changes are only valid for mobile phone providers. In 90 days, they should also be implemented by fixed telephony operators.

According to Anatel, the prefix code 0303 will be exclusive and mandatory for active telemarketing activities, the practice of offering products or services through phone calls or messages, previously recorded or not. The measure determines that telecom networks must allow the clear identification of the code on the phone’s display.

In addition, operators must preventively block calls originating from active telemarketing at the consumer’s request. Operators will also be responsible for employing the necessary technological means to curb the use of calls outside the rules established by Anatel.

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