首页> 外国专利> SYSTEM PREVENTING DOUBLE DIGIT DETECTION CAUSED BY IN-BAND DUAL-TONE MULTI-FREQUENCY SIGNALING AND METHODS THEREOF

SYSTEM PREVENTING DOUBLE DIGIT DETECTION CAUSED BY IN-BAND DUAL-TONE MULTI-FREQUENCY SIGNALING AND METHODS THEREOF

机译:带内双音多频信号引起的防止双数字检测的系统及其方法

摘要

A T2P (TDM to packet) delay buffer is provided. The delay buffer can preventdouble digit detections caused by in-band DTMF leak when out-of-band DTMF isused.The T2P delay buffer is initialized with an audio pattern that representssilence in aconfigurable amount of delay. When a DTMF digit is detected, the system canstoptaking the voice payload from the T2P delay buffer and start injecting RFC4733RTPpackets into the RTP stream at a pre-configured rate, The RFC4733 DTMF RTPpackets continue to be injected into the RTP stream until the DTMF digitstops. Oncethe end of the DTMF digit is detected, the content of the T2P delay buffer canbediscarded and the T2P delay buffer is reinitialized with an audio pattern thatrepresentssilence in a configurable amount of delay. After the T2P delay buffer isreinitialized, thevoice packetization can be continued.
机译:提供了一个T2P(从TDM到数据包)延迟缓冲器。延迟缓冲器可以防止当带外DTMF为时,由带内DTMF泄漏引起的两位数检测用过的。T2P延迟缓冲区使用表示以下内容的音频模式进行初始化沉默中可配置的延迟量。当检测到DTMF数字时,系统可以停从T2P延迟缓冲区中提取语音有效载荷并开始注入RFC4733RTP数据包以预配置的速率进入RTP流,RFC4733 DTMF RTP数据包继续注入RTP流,直到DTMF数字停止。一旦如果检测到DTMF数字的末尾,则T2P延迟缓冲区的内容可以是丢弃,并使用一种音频模式重新初始化T2P延迟缓冲区代表在可配置的延迟时间内保持静音。在T2P延迟缓冲区之后重新初始化,语音分组可以继续。

著录项

  • 公开/公告号CA2792863A1

    专利类型

  • 公开/公告日2013-09-14

    原文格式PDF

  • 申请/专利权人 MITEL NETWORKS CORPORATION;

    申请/专利号CA20122792863

  • 发明设计人 PRODANOVIC RADOVAN;

    申请日2012-10-17

  • 分类号H04M3/42;H04L12/22;

  • 国家 CA

  • 入库时间 2022-08-21 16:38:00

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