[Asterisk-Users] dreaded Caller*ID failed checksum

[Jeremy Hall]

I had DSL at my old house, and am stuck using Cable at the moment as DSL
is not available.  But when at my old house, I had no noise problems
with the DSL filter (yes, filter, I installed it at the line entry point
and ran a separate unfiltered cable directly to the DSL modem.)  Either
Qwest lines are inherently noisy to the point that I couldn't hear a
difference, or my filter worked as it should.  I had no extra noise on
the line, caller ID worked fine.  I didn't have an Asterisk server then,
so I can't comment on that part of it.

If you are still hearing noise from the DSL, I suspect you have a bad
filter or batch of filters.  I have heard some instances where the
signal is strong enough that 2 or 3 filters in line were required to
filter the noise, and that could be your case as well.

Just my $.02 worth.

Jeremy

-----Original Message-----
From: Oliver Wilcock [mailto:oliver at owch.ca] 
Sent: Thursday, April 08, 2004 9:17 AM
To: asterisk-users at lists.digium.com
Subject: RE: [Asterisk-Users] dreaded Caller*ID failed checksum

Yes, I installed the filters that came with the modem.  I'm sure you've 
noticed that they don't block all the noise.


> Subject: RE: [Asterisk-Users] dreaded Caller*ID failed checksum
> Date: Thu, 8 Apr 2004 10:55:43 -0400
> From: "Bisker, Scott (7805)" <sbisker at harvardgrp.com>
> 
> Did you install the micro filters that came with with your ADSL modem.
> Usually you get 3-4 of these.  They are used to protect your analog
> lines from the additional signal noise from the ADSL signal.
> 
> Radio Shack item number 279-103 for about $15 each
> 

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