[Asterisk-Users] static noise with this hardware any advice

[Soner Tari]

Since you say TDM04B, I guess you are talking about noise on FXO ports. So, 
my guess is that your opermode setting for zaptel driver is wrong? This may 
be true especially if the noise can be avoided or considerably reduced by 
playing with rx/txgain. At least that was the experience I had with my FXO 
modules. Hope this helps.

----- Original Message ----- 
From: "Patrick Fortin" <gestion at royaume.com>
To: <asterisk-users at lists.digium.com>
Sent: Thursday, August 18, 2005 10:20 PM
Subject: [Asterisk-Users] static noise with this hardware any advice


> Hi
>
> We have static noise problem on our asterisk server. latest stable 
> release.
> The card is a new TDM04B
>
> We have it installed on the following hardware
>
> Motherboard Intel SE7520BD2SCSI
> 2x POWER SUPPLY 730W INTEL
>
> I will not mention the other hardware because we have desactivated/changed 
> all the other items
> The only 2 items that we have not changed is the mobo and the power 
> supply.
>
> At first it was on scsi drives but we re-installed using a IDE drive
> We deactivated the two onboard nic and tried two different brand.
> We have deactivated hyper-treading
> We have deactivated USB
> We have deactivated SATA
> We have tried a noise-cancelling power-bar
> We have tried two different phones lines
> We have tried several IP phones, Cisco, Snom, Gnet
> (There is no noise for a call between two phones)
> The phone is connected directly in the nic card so there is no network 
> problem possible.
> We have tried several TDM Card
>
> Anybody knows if the motherboard or the power-supply could be the problem 
> ?
>
>
>
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