What is average handle time?
Average handle time is the mean duration of a contact, including the wrap-up completed after the caller has gone. It has served for decades as the headline efficiency measure in contact centres. On an automated voice line it still matters, though it stops measuring staff productivity and starts measuring how long the system takes to reach an outcome.
Also called: AHT
Why handle time is the easiest number to improve dishonestly
Handle time is the metric most often improved by moving the work somewhere else. A person under pressure on handle time ends calls early, and the issue returns as a second contact that the first agent is no longer accountable for. Automation makes this sharper, because a voice agent can terminate a call in four seconds and record an excellent average while resolving nothing at all. The number carries meaning only alongside evidence that the contact was actually resolved.
- Handle time improves whenever work is displaced into another contact.
- An automated line can record a low average while resolving very little.
- The distribution matters more than the mean, since long calls are where failures live.
- Handle time governs telephony cost, so finance will ask for it regardless.
How average handle time works
- Each contact is timestamped at connection and again at termination.
- Wrap-up work completed after the caller disconnects is measured and included.
- Transfers are attributed so that a handover does not reset the clock.
- The mean is reported alongside the median and the upper percentiles.
- Handle time is published only paired with a resolution measure for the same period.
How average handle time is evaluated
Handle time is interpreted against resolution, because improving one at the expense of the other is trivially easy. Report the following together for each intent:
- mean and median handle time per intent
- ninetieth percentile duration, where the failures concentrate
- handle time of contained calls against transferred calls
- repeat contact rate within seven days for the same caller
- wrap-up duration separated from talk duration
Limitations, risks and common failure modes
- Short handle time alongside rising repeat contact is a deterioration reported as a gain.
- Silence while a system queries another platform is recorded as talk time.
- Averages conceal a distribution of very short calls and very long ones.
- Comparisons against the previous arrangement ignore the work a person did afterwards.