Shouldn't the exp_wait_cv (call variable) be set up as an integer?
Also if you don't want customers to hear their expected wait time go up, you need to use a couple of variables for EWT and compare the two to see if the EWT has gone up or down. I can post an example if anyone want's it.
We are currently looking at implementing an EWT for our Help Desk, but we are finding the EWTs are wildly inaccurate. We are calcuating the exact times and comparing them with reality using a separate script that queues to the help desk skillset (If moved into production, we'll use a banded approach as above)
My question is, would the fact that most of the agents are multi skilled cause this, or is it likley to be the fact that the length and volume of calls is variable? Do Nortel recommend a certain volume of calls or spraed of calls lengths for the algorithm to work reasonable well?