Filters

I upgraded from 4Mbps Speedtouch 320 to Netgear DGN1000 (as BT have improved
the line quality to > 4Mbps). The filter, supplied with the Netgear router,
'filters out' the caller ID so I've reverted to the 'ancient' filter
supplied with the Speedtouch.

Does the filter have any restriction on the connection speed? If so, which
type of filter would I need to give me a higher speed and retain the ability
to identify the incoming line? I'm on a BT line, with BT Freelance ZA500
cordless phone system plugged into the only (main) phone point.

Keith

On 22/12/2010 13:19, Keith wrote:
> I upgraded from 4Mbps Speedtouch 320 to Netgear DGN1000 (as BT have improved
> the line quality to> 4Mbps). The filter, supplied with the Netgear router,
> 'filters out' the caller ID so I've reverted to the 'ancient' filter
> supplied with the Speedtouch.
>
> Does the filter have any restriction on the connection speed? If so, which
> type of filter would I need to give me a higher speed and retain the ability
> to identify the incoming line? I'm on a BT line, with BT Freelance ZA500
> cordless phone system plugged into the only (main) phone point.
>
> Keith
>
>
Sounds like there's something wrong with the filter supplied by Netgear
- it shouldn't stop Caller ID from working.

If the old one works ok, use that. It only filters the voice part of the
circuit - with the ADSL bit being a straight through connection - so the
filter won't restrict the speed.
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

"Roger Mills" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On 22/12/2010 13:19, Keith wrote:
>> I upgraded from 4Mbps Speedtouch 320 to Netgear DGN1000 (as BT have
>> improved
>> the line quality to> 4Mbps). The filter, supplied with the Netgear
>> router,
>> 'filters out' the caller ID so I've reverted to the 'ancient' filter
>> supplied with the Speedtouch.
>>
>> Does the filter have any restriction on the connection speed? If so,
>> which
>> type of filter would I need to give me a higher speed and retain the
>> ability
>> to identify the incoming line? I'm on a BT line, with BT Freelance ZA500
>> cordless phone system plugged into the only (main) phone point.
>>
>> Keith
>>
>>
> Sounds like there's something wrong with the filter supplied by Netgear -
> it shouldn't stop Caller ID from working.
>
> If the old one works ok, use that. It only filters the voice part of the
> circuit - with the ADSL bit being a straight through connection - so the
> filter won't restrict the speed.
> --
> Cheers,
> Roger
> ____________
> Please reply to Newsgroup. Whilst email address is valid, it is seldom
> checked.
Thanks Roger. I'll stick with my old filter as ' the filter won't restrict
the speed.'
The Netgear supplier did send me another filter, same code/part #s, same
problem. Original Netgear filter was 'in the box', next to the DGN1000.

"Brian Gregory [UK]" <(E-Mail Removed)> wrote in message
news:PcudnRuQd7GJG4_QnZ2dnUVZ8l-(E-Mail Removed)...
> "Keith" <(E-Mail Removed)> wrote in message
> news:4d11fadd$0$2534$(E-Mail Removed)...
>>I upgraded from 4Mbps Speedtouch 320 to Netgear DGN1000 (as BT have
>>improved the line quality to > 4Mbps). The filter, supplied with the
>>Netgear router, 'filters out' the caller ID so I've reverted to the
>>'ancient' filter supplied with the Speedtouch.
>>
>> Does the filter have any restriction on the connection speed? If so,
>> which type of filter would I need to give me a higher speed and retain
>> the ability to identify the incoming line? I'm on a BT line, with BT
>> Freelance ZA500 cordless phone system plugged into the only (main) phone
>> point.
>
> It's almost definitely not that the filter is stopping the caller ID
> signals from getting through but that it isn't as good at stopping the
> outgoing ADSL signals from reaching your Caller ID display.
>
> Some Caller ID displaying equipment is very sensitive to ADSL signals on
> the line.
>
> You can check by switching your modem off and seeing if that restores
> caller ID display.
>
> There's no reason at all why you shouldn't use the other filter if it
> works best with caller ID.
> It's looks like it's a better filter anyway.
>
> For the benefit of anyone else with the same problem I have found this
> filter:
> http://www.adslnation.com/products/xf-1e.php
> to be an excellent filter.
>
> --
>
> Brian Gregory. (In the UK)
> (E-Mail Removed)
> To email me remove the letter vee.
Thanks Brian. I did try switching off/on modem/router - no joy. I plan to
stay with old filter (as it works), but will have a dekko at adslnation.

Meanwhile, at the uk.telecom.broadband Job Justification Hearings, Keith
chose the tried and tested strategy of:

> "Brian Gregory [UK]" <(E-Mail Removed)> wrote in message
> news:PcudnRuQd7GJG4_QnZ2dnUVZ8l-(E-Mail Removed)...

>> Some Caller ID displaying equipment is very sensitive to ADSL signals on
>> the line.
>>
>> You can check by switching your modem off and seeing if that restores
>> caller ID display.

> Thanks Brian. I did try switching off/on modem/router - no joy. I plan to
> stay with old filter (as it works), but will have a dekko at adslnation.

ISTR someone saying that the exchange equipment [DSLAM] doesn't send a DSL
signal down the line unless it detects DSL equipment connected. If that's
true, then switching off your router means there's no DSL on the line. If
your phone is sensitive to DSL, then you could try double-filtering the
phone. Just daisy-chain the DSL filters together and plug your phone into
the last one.

--
<http://ale.cx/> (AIM:troffasky) ((E-Mail Removed))
19:09:01 up 5 days, 22:46, 6 users, load average: 0.22, 0.16, 0.05
"I am utterly appalled at how I have been treated like a criminal"
-- Andrew Crossley, ACS:Law, 13 August 2010

alexd wrote:
> Meanwhile, at the uk.telecom.broadband Job Justification Hearings, Keith
> chose the tried and tested strategy of:
>
>> "Brian Gregory [UK]" <(E-Mail Removed)> wrote in message
>> news:PcudnRuQd7GJG4_QnZ2dnUVZ8l-(E-Mail Removed)...
>
>>> Some Caller ID displaying equipment is very sensitive to ADSL signals on
>>> the line.
>>>
>>> You can check by switching your modem off and seeing if that restores
>>> caller ID display.
>
>> Thanks Brian. I did try switching off/on modem/router - no joy. I plan to
>> stay with old filter (as it works), but will have a dekko at adslnation.
>
> ISTR someone saying that the exchange equipment [DSLAM] doesn't send a DSL
> signal down the line unless it detects DSL equipment connected.

That seems to be the case. I have hiss on my line (despite every single
filter combo known to man having been tried, with almost no audibly
detectable difference or change in synch rate being observed) but it
vanishes when the router is off.

If that's
> true, then switching off your router means there's no DSL on the line. If
> your phone is sensitive to DSL, then you could try double-filtering the
> phone. Just daisy-chain the DSL filters together and plug your phone into
> the last one.
>

Made fuck all difference to me with three in series and a ferrite
toroidal choke. Its actually baseband hiss caused by intermodulation on
a non linear phone line, is my guess.

On Thu, 23 Dec 2010 18:34:05 +0000, Peter Crosland wrote:

> Assuming you have a NTL5 master socket

Obviously from a cable company! .-)

--
Use the BIG mirror service in the UK:
http://www.mirrorservice.org

*lightning protection* - a w_tom conductor

"Peter Crosland" <(E-Mail Removed)> wrote in message news:W8ydnYSnQLmDC47QnZ2dnUVZ8u-(E-Mail Removed)...
> "Keith" <(E-Mail Removed)> wrote in message news:4d11fadd$0$2534$(E-Mail Removed)...
>>I upgraded from 4Mbps Speedtouch 320 to Netgear DGN1000 (as BT have improved the line quality to > 4Mbps). The filter, supplied
>>with the Netgear router, 'filters out' the caller ID so I've reverted to the 'ancient' filter supplied with the Speedtouch.
>>
>> Does the filter have any restriction on the connection speed? If so, which type of filter would I need to give me a higher speed
>> and retain the ability to identify the incoming line? I'm on a BT line, with BT Freelance ZA500 cordless phone system plugged
>> into the only (main) phone point.
>
>
> Assuming you have a NTL5 master socket remove the faceplate and plug the phone into the test socket behind. Dial 17070 and select
> the ringback action. Replace the handset and see if the Openreach number is displayed. Repeat using just the filter. This should
> establish there is any problem with the filter.
>

My exchange, MRPRE, (System Y) does not send any CLI on 17070-1
I think it used to years ago.

--
Graham.

%Profound_observation%

In article <(E-Mail Removed)>, "Brian
Gregory [UK]" wrote:

>
> Yes I don't think a better filter is likely to speed up your ADSL by any
> detectable amount, since the one you are using seems to be pretty good.
> Sometimes if you have multiple filters for multiple phones around the house
> you might see a tiny improvement in ADSL speed from replacing all the
> filters with really good ones. I think I did but it was only a tiny change.

It depends on the state of the original installation IMO. I've seldom
seen no improvement at all when I get rid of the usual one plug-in filter
per socket type of installation in favour of single faceplate filters
(ADSLnation XTE2005). The best I've had was in someone's house where
their ADSL synch speed was of the order of 60Kbps, little better than a
modem. After fitting a new master socket and ADSL faceplate filter,
replacing the one filter in front of each phone, it went up to around
6Mbps! After investigation (I didn't believe it either) I found an old
BT installed parallel feed to an office at the end of a detached garage
with part of an old PBX still across the line...

It's often said that the house wiring is only a few feet on the end of
miles of cable from the exchange, so it can't make much difference. I
prefer to equate it to the aerial on the end of a balanced feeder cable.
The wiring up to the master socket is known, balanced, twisted-pair and
the house wiring contains many unbalanced stubs (see "Pin3 problem" and
"Normal mode noise"). The source of the RF noise that reduces the ADSL
rate is most often due to the house wiring - but someone else's house
wiring induced noise can be induced into your adjacent pair because of
the loose twist between you and the exchange, as was mine - getting moved
to a new cable fixed that one.

--
John W

"Brian Gregory [UK]" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ...
> "Keith" <(E-Mail Removed)> wrote in message
> news:4d135852$0$12173$(E-Mail Removed)...
>>
>> "Brian Gregory [UK]" <(E-Mail Removed)> wrote in message
>> news:PcudnRuQd7GJG4_QnZ2dnUVZ8l-(E-Mail Removed)...
>>> "Keith" <(E-Mail Removed)> wrote in message
>>> news:4d11fadd$0$2534$(E-Mail Removed)...
>>>>I upgraded from 4Mbps Speedtouch 320 to Netgear DGN1000 (as BT have
>>>>improved the line quality to > 4Mbps). The filter, supplied with the
>>>>Netgear router, 'filters out' the caller ID so I've reverted to the
>>>>'ancient' filter supplied with the Speedtouch.
>>>>
>>>> Does the filter have any restriction on the connection speed? If so,
>>>> which type of filter would I need to give me a higher speed and retain
>>>> the ability to identify the incoming line? I'm on a BT line, with BT
>>>> Freelance ZA500 cordless phone system plugged into the only (main)
>>>> phone point.
>>>
>>> It's almost definitely not that the filter is stopping the caller ID
>>> signals from getting through but that it isn't as good at stopping the
>>> outgoing ADSL signals from reaching your Caller ID display.
>>>
>>> Some Caller ID displaying equipment is very sensitive to ADSL signals on
>>> the line.
>>>
>>> You can check by switching your modem off and seeing if that restores
>>> caller ID display.
>>>
>>> There's no reason at all why you shouldn't use the other filter if it
>>> works best with caller ID.
>>> It's looks like it's a better filter anyway.
>>>
>>> For the benefit of anyone else with the same problem I have found this
>>> filter:
>>> http://www.adslnation.com/products/xf-1e.php
>>> to be an excellent filter.
>>
>> Thanks Brian. I did try switching off/on modem/router - no joy. I plan
>> to stay with old filter (as it works), but will have a dekko at
>> adslnation.
>
> Yes I don't think a better filter is likely to speed up your ADSL by any
> detectable amount, since the one you are using seems to be pretty good.
> Sometimes if you have multiple filters for multiple phones around the
> house you might see a tiny improvement in ADSL speed from replacing all
> the filters with really good ones. I think I did but it was only a tiny
> change.
>
> --
>
> Brian Gregory. (In the UK)
> (E-Mail Removed)
> To email me remove the letter vee.
adslnation do "guarantee" their filter will work with Caller ID but not that
it is "faster", which, as I don't understand the technicalities, I take to
mean that it doesn't restrict the inherent line speed in any way.
As I've got two more filters that came with the Freeserve Speedtouch
package, and being a Tyke, I'll stick with what works (and not hold my
breath for fibre access).