<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Jon Pounder wrote:
<blockquote cite="mid:499B2B4F.3050508@inline.net" type="cite">
<pre wrap="">Don E. Wisdom wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
On 2/17/09 2:05 PM, "Jon Pounder" <a class="moz-txt-link-rfc2396E" href="mailto:jonp@inline.net"><jonp@inline.net></a> wrote:
Jeff LaCoursiere wrote:
> What do you suppose we have as liability if we are asked to
install such
> systems? Is it the responsibility of the business owner that
orders the
> system to meet all applicable codes? If (god forbid) someone was
hurt in
> such a situation and the alarm didn't get passed because of being
> delivered by VoIP for whatever reason, does the system installer
have any
> liability?
>
>well here's a question - which is more reliable ?
>- a single copper line dialed on demand when there is a problem
>- voip or other internet technology, using internet connections on
more
>than one media (say phone and cable), voip connected to multiple
servers
>in a failover configuration.
>its not uncommon for even a house to have multiple internet
connections,
>but how many buildings have phone lines that connect back to different
>CO's and fail over ?
>The best bet if you really care about what you are trying to
protect is
>make sure the message can get out as many ways as possible, whether it
>be phone, voip, network, cellmodem, etc. Forget what regulations
>require, no one says you can't go further than the minimum if you
want.
In a REAL emergency internet/cell is more likely to fail than the
phone companys pots network.
Cable/DSLAM etc only have about 4 hours of battery power. The CO
has a entire battery room which will last a whole lot longer. Not
to mention that it may stay up longer than your VoIP network. You
also have to take into account everything between you& the CO or
cable company. If just ONE thing fails you loose voip. Copper is a
lot more forgiving & has failover modes versus the phone co’s ATM
network or the cable companies “network” (or lack there of)
--Don
</pre>
</blockquote>
<pre wrap=""><!---->
I don't know if thats really true any more, all the new areas around
here have satellite CO's where fibre comes out to a box on the street
with some batteries etc and copper runs out from there - great for dsl
since its close, but at the mercy of whatever batteries are in there.
</pre>
</blockquote>
The dial tone for the phone line still comes from the CO. The phone
companies loop there copper cable in and out of the remote cabinets. <br>
<blockquote cite="mid:499B2B4F.3050508@inline.net" type="cite">
<pre wrap="">
maybe your alarm needs to report in since there is a fire in your phone
equipment - what then ?
I have seen every type of media go down or have problems no matter how
stable - the only answer is have more than one so you always have a
backup. Poles get hit, cables get cut, equipment breaks, its just a fact
of life.
</pre>
</blockquote>
This is true, that is why most fire panels have to have 2 phone lines.<br>
<blockquote cite="mid:499B2B4F.3050508@inline.net" type="cite">
<pre wrap="">
</pre>
<blockquote type="cite">
<pre wrap="">
> j
>
> On Tue, 17 Feb 2009, Jason Aarons (US) wrote:
>
>
>>
<a class="moz-txt-link-freetext" href="http://www.iccsafe.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=001650">http://www.iccsafe.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=001650</a>
>> ;p=1
>>
>>
>> I can't see the Dept Transportation running copper to all the
motorist
>> aid boxes along the highway. I thought most of your alarm panels
have
>> moved to GSM/CDMA backup communications. I'd like to see a fire
>> marshall not give a permit for having a VoIP ATA or Vonage.
>>
>>
>>
<a class="moz-txt-link-freetext" href="http://www.iccsafe.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=001650">http://www.iccsafe.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=001650</a>
>> ;p=1
>>
>> It's permitted in Chapter 8 2002 & 2007 "Alternative Methods of
>> Communication" and these still have supervision in accordance
with Chap
>> 4 and it's sub-section.
>>
>> 8.5.2.2* Alternate Methods.
>> 8.5.4 Other Transmission Technologies.
>>
>> 8.6.2.2* Alternate Methods.
>> 8.6.4 Other Transmission Technologies.
>>
>> There is nothing specific with regards to voice over internet
protocal
>> and leaves room to add new technology proposals with requirements in
>> future editions according to A8.5.2.2. or A8.6.2.2 respectively.
>>
>>
>> -----Original Message-----
>> From: <a class="moz-txt-link-abbreviated" href="mailto:asterisk-users-bounces@lists.digium.com">asterisk-users-bounces@lists.digium.com</a>
>> [<a class="moz-txt-link-freetext" href="mailto:asterisk-users-bounces@lists.digium.com">mailto:asterisk-users-bounces@lists.digium.com</a>] On Behalf Of Jeff
>> LaCoursiere
>> Sent: Tuesday, February 17, 2009 3:28 PM
>> To: Asterisk Users Mailing List - Non-Commercial Discussion
>> Subject: Re: [asterisk-users] Credit Card processing machines
>>
>>
>>
>> On Tue, 17 Feb 2009, Jonn Taylor wrote:
>>
>>
>>> If you are in the US, ANY life safety system has to be
connected to a
>>> dedicated copper POTS line. VOIP is NOT ok to use for this. It
is in
>>>
>> the
>>
>>> NFPA.
>>>
>>>
>> What is the NFPA? Do analog extensions in traditional PBXes count?
>>
>> j
>>
>> _______________________________________________
>> -- Bandwidth and Colocation Provided by
<a class="moz-txt-link-freetext" href="http://www.api-digital.com">http://www.api-digital.com</a> --
>>
>> asterisk-users mailing list
>> To UNSUBSCRIBE or update options visit:
>> <a class="moz-txt-link-freetext" href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a>
>>
>> -----------------------------------------
>> Disclaimer:
>>
>> This e-mail communication and any attachments may contain
>> confidential and privileged information and is for use by the
>> designated addressee(s) named above only. If you are not the
>> intended addressee, you are hereby notified that you have received
>> this communication in error and that any use or reproduction of
>> this email or its contents is strictly prohibited and may be
>> unlawful. If you have received this communication in error, please
>> notify us immediately by replying to this message and deleting it
>> from your computer. Thank you.
>>
>> _______________________________________________
>> -- Bandwidth and Colocation Provided by
<a class="moz-txt-link-freetext" href="http://www.api-digital.com">http://www.api-digital.com</a> --
>>
>> asterisk-users mailing list
>> To UNSUBSCRIBE or update options visit:
>> <a class="moz-txt-link-freetext" href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a>
>>
>>
>
> _______________________________________________
> -- Bandwidth and Colocation Provided by <a class="moz-txt-link-freetext" href="http://www.api-digital.com">http://www.api-digital.com</a> --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
> <a class="moz-txt-link-freetext" href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a>
>
>
_______________________________________________
-- Bandwidth and Colocation Provided by <a class="moz-txt-link-freetext" href="http://www.api-digital.com">http://www.api-digital.com</a> --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
<a class="moz-txt-link-freetext" href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a>
------------------------------------------------------------------------
_______________________________________________
-- Bandwidth and Colocation Provided by <a class="moz-txt-link-freetext" href="http://www.api-digital.com">http://www.api-digital.com</a> --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
<a class="moz-txt-link-freetext" href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a>
</pre>
</blockquote>
<pre wrap=""><!---->
_______________________________________________
-- Bandwidth and Colocation Provided by <a class="moz-txt-link-freetext" href="http://www.api-digital.com">http://www.api-digital.com</a> --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
<a class="moz-txt-link-freetext" href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</a>
</pre>
</blockquote>
<br>
</body>
</html>