your points are welcome.
Orion audible alerts is also possible to repeat, as any other action...
Open Advanced Alert Manager app, edit the alert that is supposed to play sound. Edit the Play sound action, on the Alert Escalation tab you can find option "Execute this Action repeatedly while the Alert is Triggered". Check this option repeat Play sound action. Also Check "Do not execute this action if the Alert has been Acknowledged" to stop play sound when alert was acknowledged.
Hope this helps a little bit.
Thanks for the post - in my post I should've be specific about that this would be part of the alert view in the web interface. The alert action play a sound only functions on the server - I'm looking at providing some high level web pages for personnel who use systems across a WAN so they can gain an understanding when only critical routes, or critical equipment is down, plus the persistance of the alert until the condition is cleared.