Delore, a company that manufactures home appliances, has set a target of
increasing its customer satisfaction levels by 15 percent. To achieve this,
they aim to increase the efficiency levels of their call center executives.
They know that, on average, customers who contact the call center for
assistance, have to hold the line for over 60 seconds before being
connected to a representative. The company strives to bring this down to 20
seconds to show their customers that they value their time. Which of the
following call center metrics is the company using?