emergency alert system

[Kevin Shalla <kshalla () UIC EDU>]

The Student Affairs people here at UIC are interested in creating a
system for emergency alerts (notifying students of some campus
emergency), and requiring students to update that information before
they can register.  We already have an SMS emergency message system
available, but have no requirement for its use, and of course it
won't reach people who don't have text messaging available.  Have
others heard desire for this?  What have you done about it?