Langerhans' cell histiocytosis can manifest as three distinct clinicopathologic entities: acute disseminated Langerhans' histiocytosis (previously known as Letterer-Siwe disease), unifocal Langerhans' cell histiocytosis (previously known as eosinophilic granuloma).
average handle time (AHT) Average handle time (AHT) is a call center metric for the average duration of one transaction, typically measured from the customer's initiation of the call and including any hold time, talk time and related tasks that follow the transaction. AHT is a prime factor when deciding call center staffing levels.
Handling Time = Talk Time + Hold Time + After Call Work Time. So Handling Time is the sum of Talk Time, Hold Time and After Call Work Time. Let me explain the above mentioned terms: Average Talk Time also known as ATT is the total time a call center executive is talking to a customer. Average Hold Time is the time for which a call center executive puts the customer on hold by pressing the Hold key on his phone. Keep in mind that blank or dead air does not count as hold time, it is added to the talk time or ATT.