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Distortion

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  #1  
Old 08-23-2004, 05:56 PM
Default Distortion



Can anyone suggest why I might get distortion on voice calls over the voice
section of my broadband line in one direction only? Calls to/from any of my
three phones (two digital cordless and one analogue corded), sound muffled
and slightly "metallic" at the remote end, whilst at this end there is no
noticeable distortion at all. The calls sound the same when calling to/from
landlines or mobiles. It makes no difference whether my home phones
originate the calls or receive them. Disconnecting one or more phones has no
effect. I changed the three filters for high spec ones - it made no
difference at all. To the best of my knowledge the problem didn't exist from
the broadband installation onwards, but appeared since - but I wouldn't like
to be too positive about the timing as I rarely call into here, only out -
so I may just not have noticed. Of course, it may not be connected to the
fact that it is a broadband connection - it's possible it would have
happened on a normal landline. I can think of lots of things that could
cause interference (and have tested them all - mobile phones, Bluetooth
adaptors, etc. etc) but not that could cause distortion one way only -
that's the bizarre bit. Has anyone any ideas?


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Regards,

Bob

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Galen
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  #2  
Old 08-24-2004, 12:48 PM
Dominic
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Default Re: Distortion

Galen wrote:
> Can anyone suggest why I might get distortion on voice calls over the
> voice section of my broadband line in one direction only? Calls
> to/from any of my three phones (two digital cordless and one analogue
> corded), sound muffled and slightly "metallic" at the remote end,
> whilst at this end there is no noticeable distortion at all. The
> calls sound the same when calling to/from landlines or mobiles. It
> makes no difference whether my home phones originate the calls or
> receive them. Disconnecting one or more phones has no effect. I
> changed the three filters for high spec ones - it made no difference
> at all. To the best of my knowledge the problem didn't exist from the

<snip>

Assuming it's a BT line, call BT faults on 151.


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  #3  
Old 08-25-2004, 07:26 AM
Galen
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Default Re: Distortion


"Dominic" <d.foulkes-(E-Mail Removed)> wrote in message
news:VKydnXzhnvyutrbcRVn-(E-Mail Removed)...
> Galen wrote:
> > Can anyone suggest why I might get distortion on voice calls over the
> > voice section of my broadband line in one direction only? Calls


> Assuming it's a BT line, call BT faults on 151.


I had the line checked, and BT said is was OK - but I guess I'd better try
again and see if a different operative has any new ideas.


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Regards,

Bob

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  #4  
Old 08-25-2004, 11:04 AM
omney
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Default Re: Distortion

Galen wrote:

> Can anyone suggest why I might get distortion on voice calls over the voice
> section of my broadband line in one direction only? Calls to/from any of my
> three phones (two digital cordless and one analogue corded), sound muffled
> and slightly "metallic" at the remote end, whilst at this end there is no
> noticeable distortion at all. The calls sound the same when calling to/from
> landlines or mobiles. It makes no difference whether my home phones
> originate the calls or receive them. Disconnecting one or more phones has no
> effect. I changed the three filters for high spec ones - it made no
> difference at all. To the best of my knowledge the problem didn't exist from
> the broadband installation onwards, but appeared since - but I wouldn't like
> to be too positive about the timing as I rarely call into here, only out -
> so I may just not have noticed. Of course, it may not be connected to the
> fact that it is a broadband connection - it's possible it would have
> happened on a normal landline. I can think of lots of things that could
> cause interference (and have tested them all - mobile phones, Bluetooth
> adaptors, etc. etc) but not that could cause distortion one way only -
> that's the bizarre bit. Has anyone any ideas?
>
>

Not clear from your OP.

Have you disconnected every thing (filters, phones sky box etc etc) and
tried from one phone on the master socket.

If there is still a problem go back to BT 151 and get them to check for
one way transmission problems.
Some of the automated tests that BT do, do not show up one transmission
problems depending on the fault
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  #5  
Old 08-26-2004, 07:35 AM
Galen
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Default Re: Distortion


"omney" <(E-Mail Removed)> wrote in message news:412c62a7_1@127.0.0.1...
> Galen wrote:
>
> > Can anyone suggest why I might get distortion on voice calls over the

voice
> > section of my broadband line in one direction only? Calls to/from any of

my
> > three phones (two digital cordless and one analogue corded), sound

muffled
> > and slightly "metallic" at the remote end, whilst at this end there is

no
> > noticeable distortion at all. The calls sound the same when calling

to/from
> > landlines or mobiles. It makes no difference whether my home phones
> > originate the calls or receive them. Disconnecting one or more phones

has no
> > effect. I changed the three filters for high spec ones - it made no
> > difference at all. To the best of my knowledge the problem didn't exist

from
> > the broadband installation onwards, but appeared since - but I wouldn't

like
> > to be too positive about the timing as I rarely call into here, only

out -
> > so I may just not have noticed. Of course, it may not be connected to

the
> > fact that it is a broadband connection - it's possible it would have
> > happened on a normal landline. I can think of lots of things that could
> > cause interference (and have tested them all - mobile phones, Bluetooth
> > adaptors, etc. etc) but not that could cause distortion one way only -
> > that's the bizarre bit. Has anyone any ideas?
> >
> >

> Not clear from your OP.
>
> Have you disconnected every thing (filters, phones sky box etc etc) and
> tried from one phone on the master socket.


Yes. I left just one digital phone on the main socket, but I used the filter
on that socket. It might be worth trying it unfiltered to see if I get the
crackling but not the distortion - I didn't try that.

>
> If there is still a problem go back to BT 151 and get them to check for
> one way transmission problems.


First day off I get, I will.


--
Regards,

Bob

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