This is because these apps connect your calls with the help of Internet Protocol. Most of the apps that we are going to mention in our article today, we use them every day, so let us now provide you detailed information about these apps.
First of all, let us talk about Facebook’s instant messaging app WhatsApp. WhatsApp is a very popular app, as we all know that with the help of the app, not only chat but also many things like sharing media files, voice and video calls etc. can be done. If your phone does not have a mobile network for some reason but you are connected to Wi-Fi, you can make voice calls.
First of all open the WhatsApp app. After this, click on the name of the person to whom you want to make a call. After clicking on the name, the chat window will open. Here you will see the icon of voice and video call on the top right side. By clicking on the voice call button, your call will be connected with the help of internet protocol.
Facebook Messenger
Facebook’s Messenger app is used not only for chatting but also for many other purposes like making voice calls and posting status on Facebook. Just like in WhatsApp, in Facebook Messenger, click on the name of the person you want to call.

After doing this, the chat window will open and here you will see two buttons on the top right side, just like the WhatsApp app. One for voice and the other for video calls. As soon as you click on the voice call button, your call will be connected with the help of Internet protocol.
truecaller
Apart from WhatsApp and Facebook Messenger, you can also use True Caller app to make voice calls. Many things can also be done with the help of True Caller app. To make a voice call, first open the True Caller app and then search the name of the person you want to call.

Go to the profile of the person to whom you want to make a call. Here you will see a button for voice call. As soon as you click on the voice call button, the app will connect your call with the help of Internet Protocol.
For your information, let us tell you that with the help of these apps mentioned above, it is possible to make a call only to the person who is using the app.
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