You can manipulate USSD to achieve what you want below.<br><br><div class="gmail_quote">On Sat, Oct 20, 2012 at 9:11 PM, Jacob Ayienda <span dir="ltr">&lt;<a href="mailto:jacobayienda@gmail.com" target="_blank">jacobayienda@gmail.com</a>&gt;</span> wrote:<br>
<blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote">So am working on an application to encrypt sms messages before they<br>

are sent and decrypted on delivery as long as the message is received<br>
by the intended recipient by matching the phone no from the sender<br>
with that on the recipient&#39;s sim card. Question is?<br>
<br>
1.  How do i get the sim cards phone no.  without having to send an<br>
sms to another no.  which sends a reply.  Trying to avoid this method<br>
<br>
The intention is to eliminate middlemen from reading messages and if<br>
they were to intercept the message it would be encrypted.<br>
2. So how easy would it be to spoof the app?<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Kind Regards,<br><br>Wilson B.<br><br><br>