Pull-Push SMS gateway :

    For Push(URL sent from customer application to SMS gateway)

       http://103.200.Y.Z/push_userID/PushURL.cgi?username=userID&password=customerpassword
       &origin_addr=&mobileno=number&type=t&message=msg

    For Pull(URL sent from SMS gateway to customer application)

       http://103.206.X.Z /msp.asp?msisdn=$m&msg=$*