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by Dave Roos

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    How Emergency Notifications Work
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    Non-Discriminating Alarms
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    Targeted Emergency Notifications
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    Roos, Dave.  "How Emergency Notifications Work"  02 July 2007.  HowStuffWorks.com. <http://computer.howstuffworks.com/e-mail-messaging/how-emergency-notifications-work.htm>  23 May 2012.
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    How Emergency Notifications Work
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    Non-Discriminating Alarms
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    Targeted Emergency Notifications
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    Lots More Information

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