I found two methods:
Methods void RegisterAgent(object path)
Registers an agent which will be called whenever a
new Smart Messaging based SMS arrives.
Methods void ReceiveNotification(array{byte} notification, dict info)
Requests the agent to process a new SMS that has
arrived containing a WAP PUSH. The dictionary
info contains 'Sender', 'LocalSentTime' and
'SentTime' properties.
Can the two methods help me to handle files from WAP push?