Unverified50% confidenceFactExact time
IVR技术可追溯至1970年代，早期依赖DTMF拨号信号；2000年代基于VoiceXML的语音识别IVR开始普及
1
Sources
50%
Confidence
Long-term
Relevance
7/20/2026
First Seen
Sources
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