Oppo A57 : How to block calls and SMS for select numbers

Most of the time during day or night, we do not want to attend to unwanted calls. These days, we get a huge number of spam messages from vendors (sale, offers etc). Even though you add your number of national DND registry, the spam wont stop. Setting up call and message blocking is one ideal way to make sure that only those who you prefer to contact you (call/sms) at any given point of time can reach out to you. Oppo’s blocklist feature helps you to setup a list of numbers that cannot disturb you. In this post, we show you how to effectively customize block lists. We have compiled a few guides for Oppo A57. Head to this page to see the full list of guides. If you are using newer Oppo or Realme phone running ColorOS 6, head to this new guide.

You can access our full list of guides for newer Oppo ColorOS 5.2 (Android 8.1) in this page. You can also access our recommended smartphone list to get list of best smartphones that you can buy.

Open Settings -> Call.

Go to Block -> Blacklist.

Any numbers that you add here will be barred from calling and messaging to your phone.

To add a number, click on ‘Add’ and select the number/contact that you want to block.

Additional call related restrictions can be applied from ‘Operators Call Related Settings’. You can also disable all calls from this menu page.

Go to ‘Call Restriction’, enable ‘reject all incoming calls’ if you do not want anyone to call you.