I usually record prompt (wav files) using Windows Sound Recorder. But I found that the quality is not very good.
So, I tried to save the wav file using the default Sound Recorder format (PCM , 44.100kHz,16 bit, Stereo) first to make sure that it's not the microphone or the environment that caused the poor quality. And the result is good.
Then, I converted the file to the format that is supported by IPCC (CCITT u-law,8.000kHz,8bit Mono). I know that the sound quality should decrease. But I'm not sure that it supposed to be as low as the result I'm getting. There are noticeable kind-of-buzzing sound on the spoken message.
So could anybody tell me what I can do to improve the quality ? What software do most people used ?
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...