[cisco-voip] UCM linegroup hunting algorithm for voicemail ports?

paul dial dialp at ucar.edu
Tue Sep 1 10:55:54 EDT 2009


We're using 'Longest Idle Time' but we do not have a redundant VM server.

paul

Wes Sisk wrote, On 8/31/2009 9:40 AM:
> Wondering what call distribution algorithm most people use on the
> linegroups in UCM for Unity and Unity Connection ports.
> 
> We recently found a few major accounts using "Longest Idle" hunting
> algorithm on the line groups. That algorithm ignores the configured busy
> treatment on the linegroup.  This causes CM to send calls to the
> linegroup for failover Unity server when all members of the primarly
> linegroup are busy.  Asterisks and fineprint on the page indicate this
> is designed behavior:
> 
> Hunt Options:
> Busy**
> ...
> Fields marked with a ** are required when the Distribution Algorithm is
> set to Top Down or Circular, and are not used when the Distribution
> Algorithm is set to Longest Idle or Broadcast. The No Answer setting is
> used for Longest Idle and Broadcast.
> 
> 
> I suspect the combination of "Longest Idle" as the default and this
> limitation lead to several undiagnosed unexpected Unity failovers.
> 
> /Wes
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-- 
----
Paul Dial
Network Engineer
National Center for Atmospheric Research
303-497-1261
dialp at ucar.edu



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