[asterisk-users] Customer complains of noise on line I cannot reproduce.

[Grygoriy Dobrovolskyy]

Well i have installed asterisk on spare system to replace old one, with new
tyan motherboard, surprise came when i installed digium fxs/fxo and b410 p,
system unstable, random bips on start, misdn module Not loading, heh, old
system worked on asus p5nd2 sli without a problem with them. There were 2
reasons why i wanted change mobo 1: chipset on asus card generated too much
heat, 2: i had a new 3ware controller. So you never know really.

Loud scrathing sound? sometimes a card problem, try on other hardware.

Pci interrupts, also maybe sync problem (you can enable b410 clock in
misdn-init.conf)


Also turn off all sound/usb/etc unused devices.


2008/3/8, Royce Souther <osgnuru at gmail.com>:
>
> root at ttyp0[~]# lspci -v -s 01:07.0
> pcilib: Cannot open /sys/bus/pci/devices
> 0000:01:07.0 Communication controller: Tiger Jet Network Inc. Tiger3XX
> Modem/ISDN interface
>         Subsystem: Unknown device b1d9:0003
>         Flags: bus master, medium devsel, latency 32, IRQ 10
>         I/O ports at ac00 [size=256]
>         Memory at fbfff000 (32-bit, non-prefetchable) [size=4K]
>         Capabilities: [40] Power Management version 2
>
> This is all I know about it. The client bought them about a month ago and
> installed them himself then asked me to setup the Asterisk program for him.
> The problem motherboard was a four year old Gigabyte with a Promise IDE
> controller.
>
> The new motherboard that works well is an ASUS but I don't know anything
> else about it.
>
> On Sat, Mar 8, 2008 at 9:09 AM, Steve Totaro <
> stotaro at totarotechnologies.com> wrote:
>
> > Which revision of the Digium TDM400?
> >
> > On Sat, Mar 8, 2008 at 10:24 AM, Royce Souther <osgnuru at gmail.com>
> > wrote:
> > > IRQ's seem to have been the problem. Thanks Steve Totaro for that tip.
> > >
> > > The Digium cards were at the same IRQ as the IDE controller, I moved
> > the
> > > cards and hard drives to a different system and all is good now.
> > >
> > > Thanks.
> > >
> > >
> > >
> > > On Wed, Feb 27, 2008 at 12:11 PM, Steve Totaro
> > > <stotaro at totarotechnologies.com> wrote:
> > > > Check for IRQ issues, move the card to a different slot.
> > > >
> > > > You could ask permission to record calls so maybe you can hear the
> > > > sound yourself.
> > > >
> > > > I would then go ahead and swap out cards.  I have had TDM400 with
> > bad
> > > > modules and also bad ports on the cards themselves, so it could a
> > > > hardware issue.
> > > >
> > > > This is what I suspect, especially if you did not put any surge
> > > > suppression on your telco lines.  Usually, at least in my
> > experience,
> > > > ticks or beeps indicate IRQ, hissing or loud static indicate
> > something
> > > > with/on the board is bad.  ALWAYS use surge suppression on your
> > lines!
> > > >
> > > > Thanks,
> > > > Steve Totaro
> > > >
> > > >
> > > >
> > > >
> > > > On Wed, Feb 27, 2008 at 11:36 AM, Royce Souther <osgnuru at gmail.com>
> > wrote:
> > > > > I have setup a few Asterisk systems for customers using Digium
> > TDM400
> > > cards
> > > > > and Aastra phones. No problems with sound quality at all except at
> > this
> > > one
> > > > > site.
> > > > >
> > > > > Every time I try their system I don't hear any problems but they
> > tell me
> > > > > that it is really bad. They describe it a a loud scratching sound.
> > > > >
> > > > > Are there any tests that can be done to pinpoint the problem? Has
> > anyone
> > > > > seen this before? Are there known causes for this?
> > > > >
> > > > > --
> > > > > Open Source: To innovate then create
> > > > > Proprietary: To imitate then litigate
> > > >
> > > >
> > > >
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