Repeating Alerts

["Peter Murray" <PBMURRAY (at) syr.edu>]

I need to alternate alerts between two recipients every ten minutes
until alert is acknowledged or fixed.  I'd like to notify "user 1" after
10 minutes, 30 minutes, 50 minutes, etc. and "user 2" after 20 minutes,
40 minutes, 60 minutes, etc.  

For testing, the alert is defined like:

HOST=testhost.syr.edu
     MAIL user1 (at) syr.edu FORMAT=TEXT DURATION>10 REPEAT=20
     MAIL user2 (at) syr.edu FORMAT=SMS DURATION>20 REPEAT=20

The reality is that alerts go to user1 at 10 minutes, nobody at 20
minutes, both users at 30 minutes, nobody at 40 minutes, both users at
50 minutes, and so on.

What's the proper way to accomplish this (we're on Hobbit 4.0.4)?

Thanks,

Peter Murray
Computing and Media Services
Syracuse University
Syracuse NY 13244
<pbmurray (at) syr.edu>