Telemarketing calls and calls from unknown numbers are exhausting for anyone. The good news is that there's a series of steps that solves a large part of the problem\u2014and the first one is free, official, and doesn't require any installation.<\/p>\n\n\n\n
This guide begins with what the phone itself already does, goes through the official blocking registration in Brazil, and only then gets to the applications, all checked in the... Play Store<\/strong>. It also explains what to look for in the permissions before installing any of them.<\/p>\n\n\n\n Both Android and iPhone block numbers without an extra app. On Android, open your call history, tap the number, and choose to block and report it as spam. On iPhone, it's the information button next to the call, followed by "Block this caller".<\/p>\n\n\n\n Both systems also have the option to silence calls from unknown numbers: they go directly to voicemail and appear in the call history without ringing. It's the most effective measure for those who receive many business calls \u2014 and it costs nothing.<\/p>\n\n\n\n It is the official platform maintained by telecommunications operators under the supervision of Anatel, at the address donotdisturb.com.br<\/a>. Registration is free and blocks telemarketing calls from participating companies \u2014 telephone operators, banks and financial institutions.<\/p>\n\n\n\n The block takes effect up to 30 days after registration. Several states also have their own registration systems through Procon (consumer protection agency), which expand the list of covered sectors. It's worth registering both.<\/p>\n\n\n\n It's important to know the limit: registration only applies to companies that have joined the system. Calls from scammers don't respect any registration\u2014for these, caller ID and manual blocking are sufficient.<\/p>\n\n\n\n The application Google Phone<\/strong>, With a 4.5 rating and over 50 million reviews, it comes pre-installed on a large number of Android devices and includes caller ID and spam protection.<\/p>\n\n\n\n In the settings, enable "Caller ID and spam" and, if you want, automatic screening. It's the most discreet option in terms of privacy because it doesn't rely on sending your entire contact list to a third-party server. View on the Play Store<\/a>.<\/p>\n\n\n\n The best-known in its category: rated 4.5 and with over 29 million reviews. Identifies callers from a massive collaborative database and automatically blocks numbers marked as spam.<\/p>\n\n\n\n It's important to understand how this database is built: historically, the service model involves access to users' contact lists. In other words, your contacts' numbers can populate the database. Whether this is acceptable or not is your decision, and it's information that should be provided before installation, not after. View on the Play Store<\/a>.<\/p>\n\n\n\n Rated 4.1 and with over 800,000 reviews. It identifies calls in real time, allows you to look up numbers, and has an offline database that works without consuming internet data per call.<\/p>\n\n\n\n It also provides warnings about known scams, which helps with calls impersonating banks. View on the Play Store<\/a>.<\/p>\n\n\n\n Rated 4.3 and with approximately 262,000 reviews. Identifies and blocks unwanted calls, with a simple interface and no excessive features. Performs reverse phone number lookup.<\/p>\n\n\n\n It's a more streamlined alternative to Truecaller, with similar functionality. View on the Play Store<\/a>.<\/p>\n\n\n\n Rated 4.6 and with around 200,000 reviews, from the same developer as Hiya. Its distinguishing feature is range-based blocking: you can block all numbers within a specific area code or a specific prefix.<\/p>\n\n\n\n Useful when the discomfort always comes from the same area. View on the Play Store<\/a>.<\/p>\n\n\n\n Rated 4.5 and with approximately 45,000 reviews. Lightweight and straightforward app, focused on blocklists: specific numbers, unknown numbers, and area codes. It doesn't require a collaborative user base or broad data access.<\/p>\n\n\n\n It's the simplest option for those who just want to block calls, without caller ID. View on the Play Store<\/a>.<\/p>\n\n\n\n None block all<\/strong> Unwanted calls. Scammers constantly change their numbers and use fake numbers that mimic your city's area code\u2014when a new number appears, no database recognizes it yet.<\/p>\n\n\n\n None of them reveal the personal data of the line holder. Any app that promises the name, address, or CPF (Brazilian tax ID) of the caller is inventing or processing personal data without a legal basis, which violates the General Data Protection Law. What legitimately exists is collaborative identification: people who marked that number as spam.<\/p>\n\n\n\n A blocking app needs access to calls and history \u2014 that's expected. Access to the complete contact list, on the other hand, is where it's worth pausing and thinking: it means handing over the numbers of everyone who trusted you with their contact information, and they weren't consulted.<\/p>\n\n\n\n Also be wary of requests for access to SMS, files, location, or camera in a call blocking app. None of that is necessary for the function. If an app requests permissions unrelated to its purpose, look for another one.<\/p>\n\n\n\n It's worth remembering that you can review permissions after installation, in Android Settings, under the applications section.<\/p>\n\n\n\n It's the most effective tool on the list and the least used, so it's worth detailing. It's a free, national registry maintained by the operators themselves as required by regulation, where you register your numbers to avoid receiving unwanted calls. telemarketing offer<\/strong>.<\/p>\n What needs to be clear:<\/p>\n Non-compliance is subject to sanctions by the regulatory body, and complaints are filed through the registration channel itself \u2014 which gives some practical effect to the registration.<\/p>\n\n A specific warning is in order, because this category is used as bait. There are calls and messages offering "registration for call blocking" that ask for personal data, a code received via SMS, or payment. The official registration is free and requires nothing more than your phone numbers.<\/strong><\/p>\n Signs that the offer is fraudulent:<\/p>\n Apps that show who's calling work on a collaborative basis: people mark numbers as unwanted, and this feeds a database that is consulted with each call. It works well, with two important limitations:<\/p>\n And the cost of this convenience deserves to be mentioned: Many of these apps request access to your entire calendar.<\/strong> and send it to the server. That's how the database grows \u2014 with the contacts of those who installed it. If that's not acceptable to you, the device's native lock, combined with the caller ID built into the system's dialer, resolves most cases without revealing anyone's contact list.<\/p>\n\n\n\n The most efficient approach combines what already exists on the phone, the official "Do Not Disturb" registration, and, if necessary, a specialized app. In that order, not the other way around.<\/p>\n\n\n\n And when choosing an app, look at the permissions before rating it. A blocker that requires your entire contacts to function is asking for more than it needs \u2014 and there are alternatives that do the same job without it.<\/p>\n\n\n\n Liga\u00e7\u00e3o de telemarketing e chamada de n\u00famero desconhecido cansam qualquer um. A boa not\u00edcia \u00e9 que existe uma sequ\u00eancia de medidas que resolve boa parte do\u2026<\/p>","protected":false},"author":1,"featured_media":94246,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_revidia_rewards_active":"","footnotes":""},"categories":[3],"tags":[48,18,53,47,49],"class_list":["post-94244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dicas","tag-android","tag-aplicativo","tag-apligativo-gratis","tag-celular-2","tag-ios"],"yoast_head":"\n1. Start by removing the phone's native lock screen.<\/h2>\n\n\n\n
2. Sign up for Do Not Disturb<\/h2>\n\n\n\n
3. Use Google Caller ID.<\/h2>\n\n\n\n
Specialized applications<\/h2>\n\n\n\n
Truecaller<\/h3>\n\n\n\n
Whoscall<\/h3>\n\n\n\n
Hiya<\/h3>\n\n\n\n
Mr. Number<\/h3>\n\n\n\n
Call blocking \u2014 Dialer<\/h3>\n\n\n\n
What no app does<\/h2>\n\n\n\n
Be careful with permissions.<\/h2>\n\n\n\n
The recommended sequence<\/h2>\n\n\n\n
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How does the "Do Not Disturb" service work, and what does it actually cover?<\/h2>\n
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The coup that presents itself as a blockade.<\/h2>\n
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Why does the identifier match the number but not the intent?<\/h2>\n
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Conclusion<\/h2>\n\n\n\n
Read too<\/h2>\n
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