Hacks the phone while listening to the surroundings, then the whole offline without the Internet

Whenever someone hacks the phone while listening to the surroundings, then the whole offline without the Internet

We have a lot of friends who try to be good with us and try to bash at the time when we get to the eye. 
Using today's trick, you can choose which bash you want to give.

We will do this through a small app

First download the app from the Play Store and click here.

App Size: only 1.75 MB

Now let's see how it works. 
Basically this is an Auto Receiver App. 
First install the phone you want to hear from.

Now open the app. 
Here you will ask me to give you some instructions.

Then call it in the call in the list.

Now, by clicking +, give your number. Your job is finished.

Now when you call a number from the number you add, the call will be automatically received and you can listen to all of them. 
And since the calls from other numbers are not receivable, they will not understand it.