Northern Telecom NAC User Manual page 413

Statistics groups 19-59
Total Passthru Time
Although calls are initially received locally, they are not always answered
locally. If a call is time overflowed or queue-count overflowed, the call
could be available to other agents in the network.
If the call is answered by an agent at another Meridian MAX site, the Total
Passthru Time measures the amount of time that passes between the time
the local Meridian MAX sends the call to the answering Meridian MAX
and the time that the answering Meridian MAX finishes with the call
(either by terminating the call or transferring the call to another Meridian
MAX).
Network Administration Center Supervisor's User Guide Product release 2