在fs桥接的呼叫,经过“spandsp_start_dtmf”处理inband中的dtmf按键,转换到otherleg的时候,2833的dtmf可以正常产生,但是inband中的波形删除的不够干净,如果后续的语音节点会检测inband的话,就会产生重码的问题。 解决方案 修改思路,在spandsp对dtmf波形的处理过程中,缓存2个媒体包,当检测到DTMF时,将缓存的媒体包清空...
在fs桥接的呼叫,经过“spandsp_start_dtmf”处理inband中的dtmf按键,转换到otherleg的时候,2833的dtmf可以正常产生,但是inband中的波形删除的不够干净,如果后续的语音节点会检测inband的话,就会产生重码的问题。 解决方案 修改思路,在spandsp对dtmf波形的处理过程中,缓存2个媒体包,当检测到DTMF时,将缓存的媒体包清空...
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integer Sets the threshold parameter in the spandsp DTMF detector. Threshold is set to -42 dBm0 by default. Set this variable prior to executingspandsp_start_dtmf. Usage <actionapplication="set"data="spandsp_dtmf_rx_threshold=-42"/>
Reverse twist is set to 4 dB by default. This value can be safely increased up to 6 or 7 without a significant increase in talk-off to allow DTMFs that exceed this threshold to be detected. Set this variable prior to executing spandsp_start_dtmf....
spandsp_dtmf_rx_twistCreated by Ryan Harris, last modified on 2018.02.08spandsp_dtmf_rx_twistdtmf digit Sets the twist parameter in the spandsp DTMF detector. Twist is set to 8 dB by default. Set this variable prior to executing spandsp_start_dtmf.Usage...