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Connect agents to more people with Answering Machine Detection

Answering Machine Detection (AMD) automatically determines if an outbound call is answered by a human or a machine, letting you route calls efficiently and boost agent productivity.

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Join over 150,000 businesses, including 8 of the 10 largest tech companies in the world

SAVE TIME, CUT COSTS

Stop wasting talk time on voicemail and boost agent productivity

Answering Machine Detection listens to the first seconds of every call, labels it as human or voicemail, and automatically takes the right next step—just by adding a simple parameter in the Voice API.

Boost agent efficiency

Your agents get connected to real people, so your team can spend more time in conversations, not on voicemail greetings.

Smarter call routing

Automatically leave messages when it’s voicemail or route people to agents—it’s simple, it’s seamless, and it works every time.

Lower contact costs

Stop wasting talk time and reach more customers with the same resources, improving ROI on every campaign.
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MORE PRODUCTIVE AGENTS

Connect agents to the right person on every outbound call

AMD filters out voicemail before agents join, increasing conversations per hour and improving how resources are used in any contact center.

  • Eliminate time spent on voicemail greetings

  • Raise talk-time metrics without extra staff

  • Handle more qualified calls

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CALL FLOW FLEXIBILITY

Deliver the right message to a person or a voicemail

Automatically route calls and engage customers with interactive scripts or tailored voicemail messages—all without manual intervention.

  • Personalize live interactions with agents or TTS.

  • Leave compliant, pre-recorded messages on voicemail.

  • Build sophisticated workflows through the Voice API.

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OPTIMIZE COSTS

Reduce cost-per-contact by eliminating unproductive talk time

By skipping voicemail conversations, campaigns use fewer minutes and agents handle more qualified calls, lowering your spending on operations.

  • Fewer billable minutes on unproductive calls.

  • Scale outreach without increasing headcount.

  • Boost campaign ROI across all voice programs.

WHERE IT WORKS

Tailor every outbound call for better impact

Outbound contact centers

Filter voicemails so sales and support agents talk only to live contacts, increasing daily conversation volume and productivity.

Voice broadcasting

Play a marketing offer to humans and leave a different call-to-action on voicemail, so each audience gets the right message.

Appointment reminders

Confirm times with live recipients or leave concise reminders on voicemail, so more people show up for healthcare and service appointments.

Critical alerts & notifications

Deliver vital updates to people directly or as detailed messages—ideal for emergencies, utilities, or time-sensitive events.

HELPFUL FEATURES

Everything you need to detect and direct every call

Real-time detection

Instantly distinguish humans from machines to keep call flows smooth and responsive.

Flexible detection modes

Choose synchronous or asynchronous processing to match your architecture and latency needs.

Configurable settings

Adjust timeouts and accuracy parameters to fit unique traffic patterns and goals.

Simple API integration

Add AMD to any outbound call with a single parameter—no major code changes required.

Webhook delivery

Receive detection results via callback and trigger the next action in your application instantly.

High accuracy

Fine-tuned to distinguish live speech from recordings, reducing false transfers.

Low latency

Fast analysis prevents awkward pauses and keeps the customer experience smooth.

Voice API integration

Combine natively with TTS, Call Recording, and other Voice API features for end-to-end solutions.

Answering Machine Detection FAQs

Answering Machine Detection (AMD) is a Voice API feature that automatically determines if an outbound call is answered by a human or a machine, helping businesses connect agents only to live conversations and handle voicemail separately.

AMD analyzes the initial seconds of audio after a call is answered. It detects voice patterns to classify the answer as human or voicemail, then sends the result to your application via a webhook for automated call routing.

AMD increases agent efficiency, optimizes call flows, and reduces operational costs by eliminating time spent on voicemail so agents only speak with live contacts. 

Talk to an expert about Answering Machine Detection

See how businesses use Answering Machine Detection to filter out voicemail, increase agent productivity, and deliver tailored messages automatically.