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

[Royce Souther]

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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