How to detect private number
<p>i am developing application which automatically send message when it receive a missed call or message from a mobile.My problem is that when i get a missed call from a private number or get a message from private number or server(way2sms,160/2,ibibo)then it also automatically send message.How can i detect a private number or server so that i stop automatically message sending to that private number or server..is there any validation to check private number?? thanks</p>
