What is Call volume?

How many calls arrive over a period.

Call volume is the count of calls in a period. Its shape matters more than its total: the same daily volume arriving evenly or in a two-hour spike demands entirely different capacity.

This is an industry glossary. A term defined here is not a statement that Drop AI provides it — see the pricing page for what is included.

Concurrent calls

How many calls can be in progress at once.

Queue

Callers waiting for the next available person.

Overflow

Handling calls beyond normal capacity.

Metrics

More in this category

Word error rate Containment rate Deflection First call resolution Repeat call rate Abandonment rate Average speed of answer Service level Average handle time CSAT NPS Uptime

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