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.
Why Average Handle Time Is a Terrible Metric. Everyday is a bad day when youâre a rep working at a customer service center that evaluates you by Average Handle Time (AHT). Average handle time (AHT) is a metric for the total average duration of a single call, including hold time, talk time and the follow-up or admin tasks related to that call. Hopefully itâs on its way out too.