The first step in sending a Subscribe push is to send an HTTP POST request from the Push Initiator to the Push Agent in the telephone. Following is the format of the XML Message (PM) sent from the Push Initiator to the Push Agent:
<?xml version="1.0"?> <Push type=“subscribe”> <go href=“http://subscription_server/filename.xml” method=“get|post”> <postfield name=“name1” value=“value1”/> <postfield name=“name2” value=“value2”/> </go> </Push>