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Database Items and Calculations 
CentreVu® CMS R3V8 Database Items and Calculations
Database Items
2-72
EWTHIGH 
(real-time)
2
Database tables
2
The EWTHIGH (real-time) item appears in the following database tables:
Split/skill tables
Switch-calculated expected wait time for calls queued at high priority to 
this split/skill. The expected wait time (EWT) is an estimate of how long a 
caller will wait in queue at HIGH priority until being served. Time spent 
ringing at the agent is not included in this estimate. EWT and ASA should 
not be expected to match. ASA gives a historical perspective, while EWT 
changes constantly to match current conditions such as queue length 
and staffing changes. Available with Generic 3 Version 4 switches for 
Vectoring enhancements.
This is a status item.
EWTLOW 
(real-time)
2
Database tables
2
The EWTLOW (real-time) item appears in the following database tables:
Split/skill tables
Switch-calculated expected wait time for calls queued at low priority to 
this split/skill. The expected wait time is an estimate of how long a caller 
will wait in queue at LOW priority until being served. Time spent ringing at 
the agent is not included in this estimate. EWT and ASA should not be 
expected to match. ASA gives a historical perspective, while EWT 
changes constantly to match current conditions such as queue length 
and staffing changes. Available with Generic 3 Version 4 switches for 
Vectoring enhancements.
This is a status item.