Re: [asterisk-users] problem about voice when using TDM2400p with VPMADT032 echo canceller module

link with the same problem: http://www.asteriskguru.com/archives/asterisk-users-tdm2400-hardware-echo-cancel-vt96394.html?highlight=tdm2400 nobody can solve the problem ? Vu AnhTuan <[EMAIL PROTECTED]> wrote: hi you, I'm having problem with voice quality on my tr

[asterisk-users] problem about voice when using TDM2400p with VPMADT032 echo canceller module

hi you, I'm having problem with voice quality on my trixbox using TDM2400B.The trixbox is connected via 20 FXO ports on a TDM2400 with the hardware echo cancel module. Echo cancel almost works, but the users hear what they describe as a 'background crackle/buzz' coming back when they talk.