Average Handle Time (AHT)
Category: Metrics.
Also known as: AHT, Average call duration.
Definition: The average duration of a customer call from connection to disconnection. Service-business inbound calls typically run 2-5 minutes; appointment-booking calls cluster around 3 minutes.
Average Handle Time (AHT) measures the mean duration of customer calls, from the moment of connection to the moment of disconnection. For some operational measurements, AHT also includes any post-call work the agent does (notes, ticket creation), though this convention varies.
For inbound service-business calls, AHT typically falls in these ranges:
- Quick informational calls (status checks, basic FAQs): 60-90 seconds.
- Appointment-booking calls: 2-4 minutes.
- Quote calls with intake: 3-6 minutes.
- Emergency dispatch calls: 4-8 minutes.
- Complex troubleshooting calls: 6-15 minutes.
A useful aggregate benchmark: most service-business inbound mixes produce a weighted-average AHT of 3-4 minutes.
AHT matters operationally for two reasons:
1. Per-minute pricing exposure. If your phone-answering service charges per-minute (most live answering services do), AHT directly drives your monthly bill. AI receptionists with flat per-call pricing don't have this exposure.
2. Capacity planning for human staffing. A single front-desk receptionist can typically handle ~15-20 calls per hour at average AHT. Doubling AHT halves capacity. This is why service businesses with complex intake (e.g., legal, medical) need more phone capacity than those with simple intake (e.g., booking-focused).
Reducing AHT is generally not a goal for service businesses — short calls often correlate with lower intake quality and lower booking rates. The right metric to optimize is typically First Call Resolution combined with conversion rate, not raw call duration.
Related terms
- First Call Resolution (FCR) — The percentage of customer calls resolved completely on the first call without requiring follow-up. A core service-quality metric originally developed for contact centers.
- Call Handle Time — The total time a call occupies an answering resource, including talk time and any post-call work. Distinct from average call duration in that it includes wrap-up time.
- Phone Conversion Rate — The percentage of inbound phone calls that convert to a booked appointment or sale. Typical service businesses run 35-55%; best-in-class operators reach 70%+.
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