[Asterisk-Users] Line Noise HELP!

Mon Apr 11 14:06:22 MST 2005

Hi,

I'm having very similiar problems.. However, I'm running a development
version, and it happens on both SIP phones, and on Analog phones connected
via Sipura SPA-2000's (I have 2 different SPA2000's, and 4 analog lines..
Seems to happen on all of them as well)..

The problem seems to be EXACTLY as described.

THe call seems fine at first, then within minutes the call degrades to the
point that neither end can hear each other.. First, the volume seems to
lower, and then static, breaking up, etc..

I have both DIGIUM X100 cards for my pots lines (3 of them), and BROADVOICE
for outgoing calls.  It seems to happen no matter if I'm on an analog line
(I.E. someone called me), or if it was me that initiated the call
(BROADVOICE outbound).

I do have a 'remote' SIPURA SPA2000 located at a friends house in a
different state -- he is an extension on my pbx so he can call me, and he
can call his friends locally (He just moved away) via my POTS or BROADVOICE
line.. He experiences the same problems as I described above, unless he
calls me directly at my 'internal' extension, or I call him at his
'internal' extension.. I.E. If it doesn't touch POTS or BROADVOICE, the
problem doesn't seem to occur..??

The other interesting thing that has happened of recent development is that
some people are complaining that they are hearing the 'electronic beep'
sound as if the call is being recorded, but I am not recording the call.
This has occured with my friend as well as incoming and outgoing
POTS/BROADVOICE calls.

If anyone has an idea, I'd love to hear it.. The problem is driving me (and
others who talk to me) crazy!!!

 - Andre

  -----Original Message-----
  From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Damian Funnell
  Sent: Monday, April 11, 2005 3:08 PM
  To: junk at irqx.com; Asterisk Users Mailing List - Non-Commercial Discussion
  Subject: Re: [Asterisk-Users] Line Noise HELP!

  Hi mate,

  Interesting - you're using a different version of Asterisk than I am, but
your problem sounds identical.  We thought it was the SIP phones that we
were using as well, but then it started occurring on the analogue phones as
well.

  Post again when you've tried a new phone, will you?  Let us know if the
problem goes away.

  Cheers,
  Damian.

  Paul wrote:
    Damian,

    pbx*CLI> show version

    Asterisk CVS-HEAD-03/23/05-00:44:07 built by root at pbx on a i586 running
Linux

    There is my version info. Someone on the list has suggested that it’s my
SIPura phone. It could very well be the phone, but it just seems unlikely
that the conversation would be perfectly clear for some time before the
static starts. I tried it today and was able to go approximately two minutes
before it started. The FXO card is a generic x100P. I’m going to try to get
another IP phone and test it to see if it’s the phone. Let me know if you
come up with any ideas.

    Paul

    ________________________________________

    From: Damian Funnell [mailto:damian.funnell at fff.co.nz]

    Sent: Monday, April 11, 2005 12:49

    To: junk at irqx.com; Asterisk Users Mailing List - Non-Commercial
Discussion

    Subject: Re: [Asterisk-Users] Line Noise HELP!

    Hi Paul, there was a thread yesterday in regards to a few of us
experiencing a very similar problem - a problem that (if the same for all of
us), doesn't seem to have been properly diagnosed yet.

    One thing that appeared to be common to all of us was the version of
Asterisk that we are running (1.0.6), is this the version that you are
running?  What FXO card are you using?

    Does the noise that you are complaining about occur on every call and,
if so, always after exactly a minute, or is it more random?

    Starting to wonder if there isn't a problem with Stable, interested to
hear what version you're running.

    Damian.

    Paul wrote:

    I recently hooked up my sipura IP phone and set it up as an SIP device
to

    connect to asterisk. I am able to dial a number on the SIP phone,
connect to

    an external number via the PSTN connected to asterisk and begin the

    conversation. At first, the audio quality is PERFECT, in both
directions. I

    can hear the person clearly and they claim to hear me like im on a
regular

    POTS line. After approximately 1 minute, the quality turns horrible and
the

    person can no longer hear me, but I can faintly here them. There is a
lot of

    static on the line, it almost sounds like an electronic device is

    interfering with it. I thought maybe it was a wireless phone or router,
so I

    disconnected all those and put my cell phone in the other room. Still no

    change. Anyone have any ideas, this is really getting to be a problem.

    Paul

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