What phone model support WAP SMS Push cancellation. I tried SMS push with expiry date/time, but the phone did not remove the message after set time expired. Or do I miss major knowledge how expiry should work? Do I have to send a separate cancellation message to the phone?
expiry date/time define the time period, which is a time value that push message has to delivered to the target, if message could not be
delivered by the time specified in the push submission, the push message is expired.
If already send Push message should be removed/cancelled, it is necessary to send a cancellation message.