Skip to main content
← Back to glossary
Contact center (voice)

Answering machine detection (AMD) — Answering Machine Detection

Was ist Answering machine detection (AMD)?

Dieser Eintrag liegt derzeit nur auf Englisch vor.

Answering machine detection (AMD) is the technology an outbound dialer uses to distinguish, within the first second or two of a connected call, whether a human answered live or the call reached voicemail or an answering machine — so the system can route the call appropriately, such as connecting a live human immediately to an agent while leaving a pre-recorded message on voicemail. AMD accuracy is never perfect, and misclassifications are an inherent tradeoff of detecting this within a very short window.

More detail

AMD typically analyzes the greeting's audio pattern — length, pauses, tone — within the first second or two of the call being answered, which is why detection isn't instantaneous or perfectly accurate.

A predictive dialer relies heavily on AMD to avoid connecting an agent to a voicemail greeting, since agent time spent on a machine-answered call is pure lost productivity.

Häufige Fragen

Is answering machine detection always accurate?
No — it's a probabilistic classification made within the first second or two of a call connecting, so occasional misclassifications (a human read as a machine, or the reverse) are an expected tradeoff, not a bug in a specific implementation.
Why does AMD matter for a predictive dialer?
A predictive dialer places more calls than there are available agents, betting some won't connect to a live person — AMD lets it route voicemail-answered calls to a recorded message or drop them instead of wasting agent time on a machine greeting.

Build it on Orbit

Voice, messaging, email, video, and AI agents on one platform and one pay-as-you-go bill. Start free — no credit card required.