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" <[EMAIL PROTECTED]>
To: <[email protected]>
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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