hello, all of asteriskers: i am using tdm400P in my office. i tested that TDMF generated by asterisk is so bad. the sound is very soft and quality is so bad. i am using asterisk 1.2.18. most of time, the # key can not be detected correctly. Does anyone has that problem? please give me a hit for that problem! thanks! zhu --------------------------------- ????????3.5G???20M??? -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070709/46bef2a6/attachment.htm
lizhong zhu wrote:> hello, all of asteriskers: > i am using tdm400P in my office. i tested that TDMF generated by asterisk is so bad. the sound is very soft and quality is so bad. i am using asterisk 1.2.18. most of time, the # key can not be detected correctly. Does anyone has that problem? > please give me a hit for that problem!The only time I've heard of that problem is when VoIP is involved. I've never heard of this problem when the call is all analog, like with a TDM400P.
clive.chan(Alpha Trilogies Networks)
2007-Jul-10 06:23 UTC
[asterisk-users] Very bad TDMF tone !
Hi, Yup, I agree. You have to post out your Zapata.conf for discussions, and Have you tried out the cable terminations and also the incoming DTMF signal voltage level? It has so many possibilities for this case.> >> i am using tdm400P in my office. i tested that TDMF generated byasterisk> >> is so bad. the sound is very soft and quality is so bad. i am using > >> asterisk 1.2.18. most of time, the # key can not be detected correctly. > >> Does anyone has that problem? > >> please give me a hit for that problem! > > > > The only time I've heard of that problem is when VoIP is involved. I've > > never heard of this problem when the call is all analog, like with a > > TDM400P.1. If asterisk is detecting DTMF, the parameter "relaxdtmf=" can affect DTMF detection. 2. Have you checked your handsets on both ends of the call? Some handsets try to filter out DTMF tones. 3. Is voice quiet on your calls, too, or is it just DTMF? It's possible to affect overall signal levels in zapata.conf. Can you post the relevant portion of your zapata.conf?