ADSL doesn't work with phone plugged into second socket

Hi all,

I've had my telecom company out 3 times to fix this problem. First it
seems there was a connection problem at socket in the wall. Having fixed
that another problem remains. I have two sockets, if I plug in the ADSL
modem it works fine, however, if I then plug in the telephone the ADSL
drops off but the phone still works.

Anyone have any idea what the problem might be? Could it be a dodgy line
filter?

Thanks

Lionel.

Lionel van den Berg wrote:
> Hi all,
>
> I've had my telecom company out 3 times to fix this problem. First it
> seems there was a connection problem at socket in the wall. Having fixed
> that another problem remains. I have two sockets, if I plug in the ADSL
> modem it works fine, however, if I then plug in the telephone the ADSL
> drops off but the phone still works.
>
> Anyone have any idea what the problem might be? Could it be a dodgy line
> filter?
>
> Thanks
>
> Lionel.

The "kit" from my ISP, included an ADSL modem and four filters. You
use the filter, one per telephone. This is the filter they provided
in the kit. You plug the filter into the wall, then the phone
goes into the filter. The filter removes the high frequency content,
before it gets to the phone.

http://www.dsldepot.com/ais/item_images/z200sm.JPG

The wiring would typically look like this. Notice that the ADSL
doesn't get a filter, but the phones do. An alternate technique,
is to use a splitter at the demarc. But that requires a technician
to come to your house. That is why the phone company sends
out these kits, for a "splitterless" install using filters.

ADSL---Router---Computers
|
|
C.O. ------- Demarc ---------X------X------X---X--X (jacks)
| | | |
Filter Filter Filter Filter
| | | |
Phone Phone Phone Phone

One issue I had, was the quality of the phone wiring and jacks
in the house. I determined that my jacks had some surface
corrosion (they didn't even work well with a dial-up modem,
so I had some advanced warning they were bad), and that
led to variable ADSL performance. Once I disconnected all
the phone wiring, and ran new wire to the computer room,
no more problems.

Mine looks like this.

ADSL---Router---Computers
|
|
C.O. ------- Demarc ---------X---X
|
Filter
|
Phone

See "Installation issues" here. I corrected my problem, without
reading this. I've had ADSL for several years now. I would
have done more wiring, but I'm just too lazy :-)

http://en.wikipedia.org/wiki/Asymme...Subscriber_Line

Paul

On Sat, 15 Mar 2008 05:37:21 -0400, Paul wrote:


Sorry for not including more information. I know where the line filter
belongs, it has been working flawlessly for over a year until the recent
problems.

My wiring looks more like the following:


ADSL---Router---Computers
|
|
C.O. ------- Demarc ---------X------X
|
Filter
|
Phone


> One issue I had, was the quality of the phone wiring and jacks in the
> house. I determined that my jacks had some surface corrosion (they
> didn't even work well with a dial-up modem, so I had some advanced
> warning they were bad), and that led to variable ADSL performance. Once
> I disconnected all the phone wiring, and ran new wire to the computer
> room, no more problems.

I looked at the jack immediately before the ADSL router. I could not see
any problems and the technician also checked this and found a small
wiring problem, I wasn't around so could see what it was.

I might have to take a look at the second jack as that is the one I've
been using the phone in to test.

Thanks for the info.

Lionel.

"Lionel van den Berg" <lionelv_@gmail.com> wrote in message
news:47dcc20b$1@dnews.tpgi.com.au...
> On Sat, 15 Mar 2008 05:37:21 -0400, Paul wrote:
>
>
> Sorry for not including more information. I know where the line filter
> belongs, it has been working flawlessly for over a year until the recent
> problems.
>
> My wiring looks more like the following:
>
>
> ADSL---Router---Computers
> |
> |
> C.O. ------- Demarc ---------X------X
> |
> Filter
> |
> Phone
>

You need a microfilter on every phone socket being used. You don't seem to
have a filter on the ADSL modem!

On Mon, 17 Mar 2008 10:03:26 +0000, GT wrote:

> "Lionel van den Berg" <lionelv_@gmail.com> wrote in message
> news:47dcc20b$1@dnews.tpgi.com.au...
>> On Sat, 15 Mar 2008 05:37:21 -0400, Paul wrote:
>>
>>
>> Sorry for not including more information. I know where the line filter
>> belongs, it has been working flawlessly for over a year until the
>> recent problems.
>>
>> My wiring looks more like the following:
>>
>>
>> ADSL---Router---Computers
>> |
>> |
>> C.O. ------- Demarc ---------X------X
>> |
>> Filter
>> |
>> Phone
>>
>>
> You need a microfilter on every phone socket being used. You don't seem
> to have a filter on the ADSL modem!

The modem has one built in.

Even so, it was working for a year with no problems.

Cheers

Lionel.

"Lionel van den Berg" <lionelv_@gmail.com> wrote in message
news:47de4c17$1@dnews.tpgi.com.au...
> On Mon, 17 Mar 2008 10:03:26 +0000, GT wrote:
>
>> "Lionel van den Berg" <lionelv_@gmail.com> wrote in message
>> news:47dcc20b$1@dnews.tpgi.com.au...
>>> On Sat, 15 Mar 2008 05:37:21 -0400, Paul wrote:
>>>
>>>
>>> Sorry for not including more information. I know where the line filter
>>> belongs, it has been working flawlessly for over a year until the
>>> recent problems.
>>>
>>> My wiring looks more like the following:
>>>
>>>
>>> ADSL---Router---Computers
>>> |
>>> |
>>> C.O. ------- Demarc ---------X------X
>>> |
>>> Filter
>>> |
>>> Phone
>>>
>>>
>> You need a microfilter on every phone socket being used. You don't seem
>> to have a filter on the ADSL modem!
>
> The modem has one built in.
>
> Even so, it was working for a year with no problems.

Until you plugged a phone into the other socket?! The ADSL modem will work
without a filter, until you plug a phone into the line.

On Mon, 17 Mar 2008 10:57:30 +0000, GT wrote:
>
> Until you plugged a phone into the other socket?! The ADSL modem will
> work without a filter, until you plug a phone into the line.

Well how would it work for a year then suddenly have this problem?

The modem has a built in filter.

It may be coincidental also, as tonight both are working together though
not reliably, there has still be some drop offs.

I probably need to buy a second filter to make sure the first didn't go
dodgy anyway, so I can try 2 at that time.

Your logic still doesn't make sense to me but I'm not a telcoms engineer
so I will try some tests to prove it wrong and hopefully someone can
provide a strong argument as to why it is right.

Thanks

Lionel.

"Lionel van den Berg" <lionelv_@gmail.com> wrote in message
news:47dfbad7$1@dnews.tpgi.com.au...
> On Mon, 17 Mar 2008 10:57:30 +0000, GT wrote:
>>
>> Until you plugged a phone into the other socket?! The ADSL modem will
>> work without a filter, until you plug a phone into the line.
>
> Well how would it work for a year then suddenly have this problem?

Because you only just plugged the phone in to cause the problem! I quote,
"if I then plug in the telephone the ADSL drops off but the phone still
works" - this is entirely indicative of a missing filter on the ADSL modem.
Your diagram shows no filter on the ADSL modem.

> The modem has a built in filter.

Are you sure - they don't normally? What model is that?

On 18 Mar, 14:24, "GT" <ContactGT_remo...@hotmail.com> wrote:
> "Lionel van den Berg" <lione...@gmail.com> wrote in messagenews:47dfbad7$1@dnews.tpgi.com.au...
>
> > On Mon, 17 Mar 2008 10:57:30 +0000, GT wrote:
>
> >> Until you plugged a phone into the other socket?! The ADSL modem will
> >> work without a filter, until you plug a phone into the line.
>
> > Well how would it work for a year then suddenly have this problem?
>
> Because you only just plugged the phone in to cause the problem! I quote,
> "if I then plug in the telephone the ADSL drops off but the phone still
> works" - this is entirely indicative of a missing filter on the ADSL modem.
> Your diagram shows no filter on the ADSL modem.
>

He is obviously saying he had the phone in there for a year with the
ADSL modem, and no problem.

I cannot remember technicalities of if you have 2 phone sockets..
you can actually test if an ADSL filter is being used, and thus if it
is working.. I remember once using broadband and the phone, with no
filter, and it worked fine. But when the phone was off the hook, my
sensitive ears picked up a strange noise, which I narrowed down to
coming through the phone, and which went when I used a an adsl filter
(instead of a Y splitter). I remember meddling around even seeing
what happened if I put the phone in the adsl section and vice versa ,
just cannot remember the results!

I have heard of phones not working when you have ADSL.. If the filter
isn't be used right - so if it is not being used at all. So may in the
past, you had no ADSL filter, (or you had one, but were not plugging
your ADSL modem in it), and it just caused noise on the telephone
line, noise so quiet you didn't hear it.
But now, due to some electronic adjustment of some sort. Without a
filter you get nothing.

I have a bag of filters anyway.. Just having one or two are important
for troubleshooting.. Like any computer component.

On Sun, 23 Mar 2008 22:42:13 -0700, jameshanley39@yahoo.co.uk wrote:
> He is obviously saying he had the phone in there for a year with the
> ADSL modem, and no problem.

Thank you, I thought it was fairly obvious.

I went back to the manual that came with the ADSL modem and although I
couldn't find where it said that a filter was built in, the directions
stated to plug the modem directly into the phone port.

Regardless of all that, the problem is certainly in the line. When I
listen to the phone (which always has the filter on it) there is a
massive amount of static. How noisy it is varies, but it looks like I'm
back to having to work a time in with my telecom provider to fix it
(again).

Thanks for the help.

Lionel.