Call Management/Help Desk Software for NOCs

["Martin, Christian" <CMartin () mercury balink com>]

I am interested in implementing a new Call Management/Trouble Ticketing
system for use in a mid-sized NOC.  Can anyone offer any tips on
possible products/vendors who have a nice, easy to use, integrated
package to facilitate fast response times to calls and fast resolution
to problems.  Knowledge trees and AI would be helpful, but not
necessary.

Thanks!

Chris