From Forum Nokia Wiki

ID	KIJ000518	Creation date	December 19, 2006
Platform	Series 40 2nd Edition Series 40 3rd Edition	Devices	Including Nokia 2610, Nokia 6126, Nokia 6151, Nokia 6233
Category		Subcategory

Keywords (APIs, classes, methods, functions):

Description

If a MIDlet registers itself to be woken up by an SMS through a PushRegistry entry in the JAD file, the first incoming SMS to that specific port wakes the MIDlet properly. The subsequent SMSs do not wake the MIDlet anymore unless the phone is rebooted.

Solution

There is no workaround for this problem.