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Are there any difference between line filters?
Chazzmos 
18/4/06 3:29:30 PM
Initiate

Hey, just about to move house and I'm looking at getting some ADSL2 goodness!! And I'm sitting here wondering...

Are there any difference between ADSL line filters? iiNet Line Filters are $22 each, but I can get them from other places for about $8.

What do you think?

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bastard 
18/4/06 3:37:17 PM
Titan

No differnece. Unless they have a double adaptor built in.

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Chazzmos 
18/4/06 4:05:46 PM
Initiate

So some don't 'filter' better than others?

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bastard 
18/4/06 4:19:59 PM
Titan

Well, a filter either works or it doesn't. I have had as much trouble with $22 ones as $8 ones. Just make sure you can take them back if they don't work.

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Chazzmos 
18/4/06 4:48:44 PM
Initiate

Cheers bastard. Also, the Optus web site says: 'Speeds above 8,000kbps require ADSL2+ modem and filter'. This sounds like it's a special ADSL2+ filter...

WTF don't they just have the filter in the modem by the way....

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bastard 
18/4/06 4:52:44 PM
Titan

'cause you attache the filter to phone devices, not the modem.

I don't know about the ADSL 2+ filters, haven't had exposure to them unfortunatly. :(

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vp747 
18/4/06 4:53:33 PM
Guru

Some people don't need filters or put in a central filter so, having a built in filter would be redundant.

Not sure about ADSL2 but +1 to bastard . The $8 filters are the go. Pull em apart and they are almost identical inside to their more expensive siblings. The double adapter ones are a little more expensive but a good get

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HSV Guy 
18/4/06 6:20:57 PM
Hero
Guru


There's no such thing as an ADSL2+ filter, well there maybe, but an ADSL filter is an ADSL filter.

Re filters from iiNet, you be better off not getting one from them even if they were the same price. I think they are fine now, but a lot of the filters they gave out with the Belkin routers didn't filter at all.

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segger 
20/4/06 10:37:04 PM
Overlord

Not all filters are equal. Some people find particular brands work better with particular phones (especially cordless phones; apparently some need an anal level of filtering such as some panasonics). For $8 though you might as well give them a try :-)

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g@z 
20/4/06 11:12:06 PM
Guru
Yes there are. There is a Telstra standard for filter comliance. Interestingly some of the older more popular ones like the Dlink central filter do not comply.

Have a read of this: http://www.telstra.com.au/adsl/equipmnt.htm
And this: http://forums.whirlpool.net.au/index.cfm?a=wiki&tag=adslfp_03

Regards,
g@z.

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Mr_Tux 
21/4/06 7:12:23 PM
Serf
As segger said, SOME filters work better.

Panasonic cordless phones can do with a more powerful filter as somehow the output signal towards the exchange gives the ADSL hardware a start and drops your ADSL sync on it's head.

ADSLv1 vs ADSLv2 filters: No diff, just placement and/or interpretation of what was written.

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Urbansprawl 
22/4/06 2:34:11 PM
Guru

The best filters are the C10 filters. Get C10 branded filters if you can.

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Maelgwn 
24/4/06 8:33:13 PM
Master

Yeah some filters are def better then others
I had a problem with a filter/panasonic cordless phone.
Changed filters and its now all love

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mcbridematt 
26/4/06 8:21:41 PM
Champion

As others have said, hell yeah!!

One that came with a D-Link USB modem I have for backup doesn't generate as much static on the phone attached to it, compared to http://www.warcom.com.au/shop/flypage/adslaccess/372 , which worked normally on the combo fax/phone machine we have but caused all hell with said DSE answering machine/phone combo. The ADSL connection also become a little bit more stable once I started using the D-Link one.

Oh, Filters aren't the only things which can cause a DSL modem to s**t itself, some modems aren't as tolerant as others. My Open 501R is much more stable than the two Billions (741GE and some later wireless model) I've used.

ADSL2+ uses a different frequency envelope to ADSL1 and ADSL2 AFAIK (Internode was able to do ADSL2 early because of this, but ADSL2+ had to wait due to different frequencies), but I doubt there would be anything that would need to change in the filter.

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