A large number of call center workers had work experience between 1-3 years (median 1 year) at 74.5%. They
had work duration of 8 hours per day (76.4%) and continuous work with computer 4-8 hours per day at 86.6%
(median 8 hours). They had calls with customer 6-10 times per hour at 70.0% (median 5 times) with 64.8% spend
time to call 5 minute per time.