In Florida some new subdivision developers have sold the
phone/cable/internet rights to a provider. They run fiber to each house
and then have the uplink to provider which isn't a traditional telco.
You can't get another provider as satellite dishes are limited in
covenants and restrictions (CCR). I guess you could get GSM or CDMA
service from cell provider or WiMax/LTE. It provides an upfront funding
to developer for sewer/water costs. I'd be curios what battery life
they have.
I know the FCC mandated cell towers have more battery life after
Hurricane Katrina wiped out communications in New Orleans for months.
From: asterisk-users-boun...@lists.digium.com
[mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Jonn
Taylor
Sent: Tuesday, February 17, 2009 5:09 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] life safety system and VOIP
Jon Pounder wrote:
Don E. Wisdom wrote:
On 2/17/09 2:05 PM, "Jon Pounder" <j...@inline.net>
<mailto:j...@inline.net> 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
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.
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.
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.
This is true, that is why most fire panels have to have 2 phone lines.
> j
>
> On Tue, 17 Feb 2009, Jason Aarons (US) wrote:
>
>
>>
http://www.iccsafe.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=001650
>> ;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.
>>
>>
>>
http://www.iccsafe.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=001650
>> ;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: asterisk-users-boun...@lists.digium.com
>> [mailto:asterisk-users-boun...@lists.digium.com] 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
>>
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