公开(公告)号：US09596578B1

公开(公告)日：2017-03-14

申请号：US15178106

申请日：2016-06-09

申请人： Citrix Systems, Inc.

发明人： Brett Clark ,  Christopher Rienzo

IPC分类号： H04M11/10 ,  H04W4/12 ,  H04M3/533 ,  H04W4/16 ,  H04M3/46 ,  G10L25/78

CPC分类号： H04W4/12 ,  G10L17/26 ,  G10L25/51 ,  H04M3/46 ,  H04M3/53383 ,  H04W4/16

摘要： Techniques are disclosed for using voicemail fingerprints to detect when a call has been answered by voicemail. A voicemail fingerprint of a known voicemail greeting is stored in association with a telephone number. The voicemail fingerprint contains a set of audio analysis streams, each of which contains audio characteristics of the known voicemail greeting beginning at a different offset from the beginning of the known voicemail greeting. A current audio analysis stream is generated containing audio characteristics of audio received beginning when a call to the telephone number is answered. If the current audio analysis stream matches one of the audio analysis streams contained in the voicemail fingerprint of the known voicemail greeting associated with the telephone number, the call to the telephone number has been answered by a voicemail box of the telephone number, and may be transferred to a secondary destination.

摘要翻译： 公开了使用语音邮件指纹来检测呼叫何时通过语音邮件应答的技术。 与电话号码相关联地存储已知语音邮件问候语的语音邮件指纹。 语音邮件指纹包含一组音频分析流，每个音频分析流包含已知语音邮件问候语的音频特征，该语音邮件问候语从与已知语音邮件问候语的开始不同的偏移开始。 生成包含当对电话号码的呼叫应答时开始的音频的音频特征的当前音频分析流。 如果当前音频分析流与包含在与电话号码相关联的已知语音邮件问题的语音邮件指纹中的音频分析流之一匹配，则电话号码的呼叫已经被电话号码的语音邮件箱应答，并且可以是 转移到次要目的地。