It is very simple. To call out from inside the TextApp:

  1. Tap Call (third) tab. Select WiFi call to make a free video/audio call to another TextApp user on his/her WiFi number (that starts with '+T 123'. Select Sim call to make a phone call to a number in the world using ISD Code by using Credit balance.
  2. Select the contact from History or Contacts from the bottom of the dialer. Alternatively, you can type in the number.
  3. Tap the phone-call icon on the dialer screen to initiate an audio call. And the video-camera icon to initiate a video call.