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× Questions about B100/200/400/800 ISDN BRI Cards

b100p echo problems

9 years 11 months ago #9581 by chiccol
I have a b100p installed on intel motherboard and atom processor,

Freepbx with asterisk 11 and dahdi 2.6.2 patched for the b100p

all is going well but, from and to some specific number, all italian number i receive a terrible echo,

i tried to modify tx and rx gain, but without solution, these specific calls are very noisy,

activated echo cancellation, echo training, but anything change.

calling the same numbers from the same line with old analogic pbx don't create noise or echo..

any help?

9 years 11 months ago #9584 by hua
Download this driver and install directly :

Do not need to do any patch.
9 years 11 months ago #9587 by chiccol
i tried 2.6.2, 2.6.0, 2.5.0. 2.9.0. all have the same problem,

if i phone via SIP from same phone to same phone number i don't have echo, if I use DAHDI I have echo,

tomorrow i try again to install 2.6.2
9 years 11 months ago #9588 by hua
Give me remote access, I will check it .

Skype: upper.hua

E-mail :[email protected]
9 years 11 months ago #9601 by chiccol
found the solution,
in driver 2.9.0. the echo canceller after some times stop working.. i have to charge again the driver, and then all come back normal..

now i have to understand why the echo canceller stop working
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