[asterisk-users] Customer complains of noise on line I cannot reproduce.
Grygoriy Dobrovolskyy
megahohol at gmail.com
Thu Mar 13 21:22:22 CDT 2008
Ok, prepare yourself for a long week end;)
1) Replace all cables on isdn card
2) Read misdn-init.conf carefully, play with parameters, I don’t think that I need to describe them, file is well commented.
3) Test communications port by port (dial out with each at least 5 times) If you found that problem on one port, 2 cases, card or line, so first change line for the same port, sound reproduces? Card problem. No? maybe line but not sure. See next.
4) Test with old pabx (if possible) Got the bad quality with old pabx? If yes not * problem.
5) Sometimes it is the card itself, buy a cheap one port visdn card (~25€) install/test with it (connect with bad line if found). Sounds gone ? card problem.
6) Write feedback
7) Buy beer.
-----Message d'origine-----
De : asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] De la part de Fons van der Beek
Envoyé : mercredi 12 mars 2008 16:49
À : Asterisk Users Mailing List - Non-Commercial Discussion
Objet : Re: [asterisk-users] Customer complains of noise on line I cannot reproduce.
Gyboriy,
Unfortunatly adding timing=1
didn't help, there are still beeps in the conversations...........
any other ideas?
With kind regards
Fons van der Beek
Fons van der Beek schreef:
> tnx for your help Gryboriy,
>
> I've added
> timing=1 to misdn-init.conf
>
> Can i check anything to see if it's ok?
> misdn log gives no errors when loading
>
>
> Thu Mar 6 13:38:55 2008: P[ 4] Got EVENT_FACILITY but we don't have a ch!
> Sat Mar 8 07:52:34 2008: P[ 0] -- mISDN Channel Driver Registered --
> Sun Mar 9 11:49:46 2008: P[ 0] -- mISDN Channel Driver Registered --
> Sun Mar 9 12:09:08 2008: P[ 0] -- mISDN Channel Driver Registered --
>
> Shall i wait and see now what is happening? or can i do something else?
>
>
>
> Grygoriy Dobrovolskyy schreef:
>
>> Ok lets try same way:
>> add option
>> timing=1 in misdn-init.conf
>> see what happens
>>
>> 2008/3/9, Fons van der Beek <fons.vanderbeek at 84-it.com
>> <mailto:fons.vanderbeek at 84-it.com>>:
>>
>> I use MiSDN
>> so
>>
>>
>>
>> head -n 1 /proc/zaptel/*
>>
>> gives
>>
>> head: cannot open `/proc/zaptel/*' for reading: No such file or
>> directory
>>
>>
>> Grygoriy Dobrovolskyy schreef:
>>
>> > paste output of
>> > head -n 1 /proc/zaptel/*
>> >
>>
>> > 2008/3/9, Fons van der Beek <fons.vanderbeek at 84-it.com
>> <mailto:fons.vanderbeek at 84-it.com>
>> > <mailto:fons.vanderbeek at 84-it.com
>> <mailto:fons.vanderbeek at 84-it.com>>>:
>>
>> >
>> > what clock?
>> > rxclock
>> > crystalclock
>> >
>> >
>> > I currently use
>> >
>> > "card=1,0x4"
>> >
>> >
>> >
>> >
>> >
>> >
>>
>> > Grygoriy Dobrovolskyy schreef:
>> >
>> > > 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
>> <mailto:osgnuru at gmail.com>
>>
>> > <mailto:osgnuru at gmail.com <mailto:osgnuru at gmail.com>>
>> <mailto:osgnuru at gmail.com <mailto:osgnuru at gmail.com>
>>
>> > <mailto:osgnuru at gmail.com <mailto: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
>> <mailto:stotaro at totarotechnologies.com>
>> > <mailto:stotaro at totarotechnologies.com
>> <mailto:stotaro at totarotechnologies.com>>
>> >
>>
>> > > <mailto:stotaro at totarotechnologies.com
>> <mailto:stotaro at totarotechnologies.com>
>>
>> > <mailto:stotaro at totarotechnologies.com
>> <mailto: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 <mailto:osgnuru at gmail.com>
>> <mailto:osgnuru at gmail.com <mailto:osgnuru at gmail.com>>
>>
>> > <mailto:osgnuru at gmail.com <mailto:osgnuru at gmail.com>
>> <mailto:osgnuru at gmail.com <mailto: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
>> <mailto:stotaro at totarotechnologies.com>
>> > <mailto:stotaro at totarotechnologies.com
>> <mailto:stotaro at totarotechnologies.com>>
>> >
>>
>> > > <mailto:stotaro at totarotechnologies.com
>> <mailto:stotaro at totarotechnologies.com>
>>
>> > <mailto:stotaro at totarotechnologies.com
>> <mailto: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 <mailto:osgnuru at gmail.com>
>> <mailto:osgnuru at gmail.com <mailto:osgnuru at gmail.com>>
>>
>> > <mailto:osgnuru at gmail.com <mailto:osgnuru at gmail.com>
>> <mailto:osgnuru at gmail.com <mailto: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
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>> > > > >
>> > > > >
>> > > > >
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