The program is designed to block incoming calls. At the moment has the fastest algorithm block calls. In the settings you can set the desired response of the application on incoming call (method): to reject the call, make the call to silent, or in the case support your device and the cellular network, the caller will hear the subscriber is not in service or wrong number.
The application consumes minimal resources of your mobile device, and all the basic settings found in the left slide-out panel (left navigation drawer).
The usability of this program in contrast to the standard blacklist is that all the data about the blocked call is stored in a separate program that has its own log and settings. Access to the application can be password protected. Password recovery application is not provided. However, you can reset it by clicking on the icon in the upper right corner of the screen to enter a password to log in to the application. After you restore all your lists and settings will be reset to the original. The password is not stored in the clear and encrypted. So it is not stored anywhere in the clear.
Phone numbers to block are entered in the blacklist. White listing is for numbers, calls from which will not be blocked. The number listed in the White list add to Black list can not, and vice versa.
In the lists the numbers are added from the contacts, manually, from the call log from messages. You can specify only the beginning of the phone number. Blacklisted numbers can be combined into a group. This is useful if you plan to block the calls on schedule.
In the app you can set a schedule for the blacklist, and for individual numbers or groups of numbers.
Blocked numbers are displayed in a log. The log can be disabled, and you never know about the incoming rejected call. Also in the settings you can disable only the notifications about the block, while the log will continue to work. You can also export log.
This version supports for blocking calls and messages. But the message will be blocked only for versions of Android above 4.4 (KitKat). The same blocking incoming calls works fast on all versions of supported devices.
In the program you can also enable the block calls from unknown or hidden numbers. Under the unknown numbers in the program includes all numbers that are not listed in your phonebook contacts, that is, a number defined without a name. Under hidden - no number, that is, when the incoming call number is not defined.
You can also block all incoming calls, making the advice not available to all calling subscribers.
At any time, the application can be disabled. In this case, the application will be nothing to block.
There are other possibilities that you can find out by installing the application.
Any questions and comments can be set via the app or write an e-mail to: support@lithiums.ru . The support does not work reviews on Google Play due to the fact that no feedback, and the number of characters for the developer's reply is limited.

// Option A //

To download Call Blocker mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Call Blocker mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Call Blocker from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Call Blocker in HappyMod App.