Follow-up on this
We have tried several things without success.
Digium responded that the problem was NMI (non-maskable interrupts) and
told me to boot linux with the nmi_watchdog=0 option
It did not solve the problem.
Finally I replaced the TDM card with an older one (revision F) 2FXO 2FXS
And the static noise is gone !!
Anobody have an idea why this happened
Of course it doesn't solve my problem because we have one old card and
several new card but it may give digium an idea of where is my problem
Patrick
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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