How to change the default android call screen(both outgoing and incoming)
<p>I would like to know how I can add extra fields to the current android calling and recieving screen ? Like the area code of a region or so? I am looking for pointers at to where to start only. Could someone please help me?Just to convince people that this indeed is possible , the link to the app that does just this is <a href="https://play.google.com/store/apps/details?id=ardent.androidapps.callerinfo.views&amp;hl=en" rel="nofollow">https://play.google.com/store/apps/details?id=ardent.androidapps.callerinfo.views&amp;hl=en</a></p>

<p><img src="http://i.stack.imgur.com/4sbC1.jpg" alt="enter image description here">   </p>
