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statistics · customer-support

Call handle time bell curve

This bell curve shows a simplified distribution of support-call handle times centered on eight minutes. It can help a manager describe what is typical and identify a small number of calls that deserve review at either end of the range. Handle time alone is not a quality score: a short call may be unresolved, and a longer one may reflect a difficult but successful case. Segment by call type, channel and shift before drawing conclusions. The curve is most useful alongside measures such as resolution, customer satisfaction and repeat contact. It gives teams a concrete starting point for reviewing assumptions, data quality and next steps together.

Type echarts-lineEngine echarts-lineUpdated 9/24/2026
Atlas Support call handle times
Drawing preview
The request

“Create a bell curve for Atlas Support call handle times from 2 to 14 minutes, peaking at 8 minutes with relative frequencies 1, 3, 7, 14, 22, 29, 33, 29, 22, 14, 7, 3 and 1.”

Then tryAdd a target marker at 8 minutes.Change the horizontal axis label to Average handle time.
What is in this drawing

Read the decisions behind it.

01Define the cohort

Compare similar call types and shifts.

02Find the center

Identify typical handle time.

03Investigate tails

Review unusually short or long calls.

Use for continuous operational measures after separating distinct call types.

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FAQ

Common questions

What does a long right tail suggest?

It suggests some calls take substantially longer than the typical call and may need investigation.

Should handle time be optimized alone?

No. Pair it with resolution and customer-experience measures.

Why segment call types?

Billing, technical and account calls can have different natural durations.