The refresh rate will impact the processor capacity of your CMS box. On the SUN there are monitors to watch this. It all depends on the number of agents, the Q and the number of supervisors. Also the number of simultane real-time windows a supervisor has open effects this offcourse.
If supervisors are also running historical reports that have large query's this would effect the system, as a custom report or a report designer report would do.
The there is the question if you are using External Call History, or if you run a ODBC link to the CMS box.
All in all, the main thing is to have a look at the stats on the SUN box about processor occupancy.
My experience is that a refresh rate lower then 10 sec, is not that helpfull. If the sh@t hits the fan in the call center a lower refresh rate will not solve that, staffin agents would, or better trained agents would.
Besides a low refresh rate also mean more packest being send over the LAN from the SUN towards the Supervisor PC.
That can seriously put extra load on the LAN infrastructure.
This probarbly is not what you were looking for, but it is some background information that I wanted to share Please let me know if the information that was provided is helpfull.
Edwin Plat
A.K.A. Europe