Operations: how to filter text messages on iPhone

Question for operations people. I work at a place that believes in configuring Nagios to send SMS alerts on all priorities of issues - even non-urgent ones that I don't need to wake me up in the middle of the night.

Is there a way on my iPhone to filter these texts based on words in the body or subject? I've got an iPhone 3GS, I think it's running iOS 4.x something but I can upgrade to iOS 5 if needed.

Solution 1:

You could send the SMSes through an online service like Google Voice that might be able to do content filtering (or at least would forward certain ones to email to filter).