Answering machine detection (AMD) is technology that determines whether an outbound call was picked up by a live person or a voicemail or answering machine. It lets dialers route live answers to a rep or agent and drop a pre-recorded message on voicemails.
AMD analyzes call audio (greeting length, beeps, speech patterns) to classify an answer as human or machine, usually within the first couple of seconds. It is what lets a
parallel dialer or
predictive dialer avoid wasting rep time on voicemails and instead drop a recorded message automatically. AMD is never perfect: false positives can clip the start of a human conversation, and false negatives can route voicemails to a rep, so its accuracy directly affects effective
connect rate. TwinsAI's
AI dialer uses AMD so its agents engage only on live answers.
TwinsAI is an AI voice agent that runs outbound sales calls end to end: it dials, qualifies, and books meetings, then warm-transfers a human when it matters.
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